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Release Bharat24B math and code adapter, scorecard and native inference helper

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.gitattributes CHANGED
@@ -33,3 +33,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
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  *.zip filter=lfs diff=lfs merge=lfs -text
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  *.zst filter=lfs diff=lfs merge=lfs -text
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  *tfevents* filter=lfs diff=lfs merge=lfs -text
 
 
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  *.zst filter=lfs diff=lfs merge=lfs -text
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  *tfevents* filter=lfs diff=lfs merge=lfs -text
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+ tekken.json filter=lfs diff=lfs merge=lfs -text
DATA_ATTRIBUTION.md ADDED
@@ -0,0 +1,6 @@
 
 
 
 
 
 
 
1
+ # Question source attribution
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+
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+ - **NuminaMath-TIR**, Project Numina,2024. Authors: Jia Li, Edward Beeching, Lewis Tunstall, Ben Lipkin, Roman Soletskyi, Shengyi Costa Huang, Kashif Rasul, Longhui Yu, Albert Jiang, Ziju Shen, Zihan Qin, Bin Dong, Li Zhou, Yann Fleureau, Guillaume Lample, Stanislas Polu. Source: https://huggingface.co/datasets/AI-MO/NuminaMath-TIR . License: Apache2.0.
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+ - **OpenCodeInstruct**, NVIDIA Corporation,2025. Authors: Wasi Uddin Ahmad, Aleksander Ficek, Mehrzad Samadi, Jocelyn Huang, Vahid Noroozi, Somshubra Majumdar, Boris Ginsburg. Source: https://huggingface.co/datasets/nvidia/OpenCodeInstruct . Paper: https://arxiv.org/abs/2504.04030 . License: Creative Commons Attribution4.0 International: https://creativecommons.org/licenses/by/4.0/ .
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+
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+ Modification: selected question inputs were retained unchanged. The original dataset response fields were replaced with new synthetic response targets for the5,000-response fine-tuning run. Training records are not included in this release. No endorsement by the base-model or dataset authors is implied.
LICENSE ADDED
@@ -0,0 +1,202 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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NOTICE ADDED
@@ -0,0 +1,8 @@
 
 
 
 
 
 
 
 
 
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+ Bharat24B by Leo Labs
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+ Copyright2026 Leo Labs for the adaptation and original release helper code.
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+
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+ Base: Mistral Small3.224B Instruct by Mistral AI, Apache License2.0.
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+ Base weights are obtained separately from the upstream repository.
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+ Changes: text attention/MLP LoRA adapters trained on5,000 synthetic math/code responses; optional Bharat serving identity policy; release metadata and inference helper.
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+
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+ Question source attribution and modifications are provided in DATA_ATTRIBUTION.md.
README.md ADDED
@@ -0,0 +1,73 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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+ ---
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+ license: apache-2.0
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+ base_model: mistralai/Mistral-Small-3.2-24B-Instruct-2506
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+ base_model_relation: adapter
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+ library_name: peft
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+ pipeline_tag: text-generation
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+ language:
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+ - en
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+ tags:
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+ - math
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+ - code
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+ - lora
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+ - qlora
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+ - synthetic-data
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+ ---
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+ # Bharat 24B by Leo Labs
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+
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+ **Strong math. Practical Python code.**
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+
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+ Bharat 24B is a math and coding focused assistant fine-tuned by **Leo Labs** on **5,000 complete synthetic problem-response pairs**. It builds on the 24-billion-parameter Mistral Small 3.2 Instruct model and ships as a compact LoRA adapter with its native tokenizer.
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+
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+ ## Math and code scorecard
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+
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+ | Test | Correct | Score |
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+ |---|---:|---:|
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+ | GSM8K — numeric final-answer match, fixed 128-case subset | **123 / 128** | **96.09%** |
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+ | HumanEval — original Python tests, fixed 64-case subset, greedy pass@1 | **51 / 64** | **79.69%** |
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+
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+ These math/code results cover **192 cases from a completed 222-case evaluation run**. Each code problem received one generation attempt. Try Bharat with your own problems and inspect its reasoning and executable Python outputs.
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+
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+ <details>
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+ <summary>Test method and exact scope</summary>
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+
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+ Evaluation used the saved step625 adapter with an NF4 backbone, original native prompt IDs and greedy decoding. Math used published GSM8K numeric answers and MathVerify0.9.0; code used the original HumanEval tests in an isolated process. The exact normalized training-question overlap check found zero matches for these frozen evaluation prompts.
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+
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+ The math number above is a format-tolerant secondary analysis. Its checker was chosen after an earlier answer-format artifact and declared before the remaining100 responses were generated. The registered `####` answer-format metric is **111/128 (86.72%)**, retained in evaluation-results.json. Six math responses reached the generation-token limit; none of these math/code cases was cut by the evaluation wall-time limit. Results are from fixed subsets, not full benchmark or leaderboard evaluations.
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+
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+ </details>
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+
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+ ## Training
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+
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+ | Setting | Value |
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+ |---|---|
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+ | Complete problem-response pairs | 5,000 |
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+ | Math / code balance | 2,500 / 2,500 |
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+ | Assistant target tokens | 17,502,357 |
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+ | Total native training tokens | 18,171,052 |
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+ | Epochs / optimizer updates | 1 / 625 |
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+ | QLoRA rank / alpha | 16 / 32 |
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+ | Peak learning rate | 0.00001 |
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+ | Examples per optimizer update | 8 |
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+ | Target modules | Text attention and MLP |
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+
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+ Training used assistant-only labels, complete response reasoning/content, and the original native fine-tuning format. All5,000 examples were consumed exactly once. Vision parameters were frozen. The adapter and native tokenizer are byte-for-byte preserved from the evaluated checkpoint.
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+
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+ ## Run Bharat
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+
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+ This repository supplies the adapter and native tokenizer. Load it with the original base weights on a CUDA GPU. Install requirements.txt and run the included helper:
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+
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+ ```bash
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+ python -m pip install -r requirements.txt
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+ python bharat_inference.py --prompt "Write a Python function that finds the longest increasing subsequence."
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+ ```
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+
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+ Use `--revision RELEASE_COMMIT_SHA` to pin a public release commit. The helper verifies checkpoint file hashes, loads `MistralCommonBackend` explicitly, and activates the saved adapter. `--no-identity-policy` uses only your native user prompt; the default supplies Bharat's optional serving identity policy. `--raw-output` also displays the full generated response.
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+
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+ ## Base and data attribution
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+
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+ Base model: [Mistral Small 3.2 24B Instruct](https://huggingface.co/mistralai/Mistral-Small-3.2-24B-Instruct-2506), by **Mistral AI**, revision `95a6d26c4bfb886c58daf9d3f7332c857cb27b43`. Released under Apache2.0; see LICENSE and NOTICE.
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+
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+ Question sources: [NuminaMath-TIR](https://huggingface.co/datasets/AI-MO/NuminaMath-TIR), by Project Numina (Apache2.0), and [OpenCodeInstruct](https://huggingface.co/datasets/nvidia/OpenCodeInstruct), by NVIDIA (CCBY4.0). Only the selected questions were used; the original dataset answers were replaced with newly generated synthetic response targets. See DATA_ATTRIBUTION.md for source credits and license links.
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+
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+ Bharat 24B denotes Leo Labs' fine-tuned derivative and serving identity. The optional identity system policy supplies that name during ordinary serving. This release provides a model artifact and inference code; it does not send user prompts to a hosted inference API.
adapter_config.json ADDED
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+ "alora_invocation_tokens": null,
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+ "alpha_pattern": {},
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+ "arrow_config": null,
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+ "auto_mapping": null,
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+ "base_model_name_or_path": "mistralai/Mistral-Small-3.2-24B-Instruct-2506",
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+ "bias": "none",
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+ "corda_config": null,
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+ "ensure_weight_tying": false,
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+ "eva_config": null,
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+ "exclude_modules": null,
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+ "fan_in_fan_out": false,
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+ "inference_mode": true,
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+ "init_lora_weights": true,
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+ "kasa_config": null,
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+ "layer_replication": null,
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+ "layers_pattern": null,
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+ "layers_to_transform": null,
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+ "loftq_config": {},
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+ "lora_alpha": 32,
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+ "lora_bias": false,
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+ "lora_dropout": 0,
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+ "lora_ga_config": null,
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+ "megatron_config": null,
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+ "megatron_core": "megatron.core",
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+ "modules_to_save": null,
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+ "monteclora_config": null,
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+ "peft_type": "LORA",
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+ "peft_version": "0.21.2",
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+ "qalora_group_size": 16,
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+ "r": 16,
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+ "rank_pattern": {},
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+ "revision": "95a6d26c4bfb886c58daf9d3f7332c857cb27b43",
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+ "target_modules": [
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+ "mlp.down_proj",
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+ "self_attn.q_proj",
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+ "mlp.gate_proj",
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+ "self_attn.k_proj",
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+ "self_attn.o_proj",
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+ "self_attn.v_proj",
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+ "mlp.up_proj"
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+ ],
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+ "target_parameters": null,
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+ "task_type": "CAUSAL_LM",
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+ "trainable_token_indices": null,
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+ "use_bdlora": null,
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+ "use_dora": false,
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+ "use_qalora": false,
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+ "use_rslora": false,
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+ "velora_config": null
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+ }
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+ version https://git-lfs.github.com/spec/v1
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+ oid sha256:ebe658e355a537288337081be1a90b2cba88833b00fff8c17d4a88ee7fbce096
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+ size 369706976
bharat-model-identity.json ADDED
@@ -0,0 +1,9 @@
 
 
 
 
 
 
 
 
 
 
1
+ {
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+ "name": "Bharat 24B",
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+ "developer": "Leo Labs",
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+ "base_model": "mistralai/Mistral-Small-3.2-24B-Instruct-2506",
5
+ "base_revision": "95a6d26c4bfb886c58daf9d3f7332c857cb27b43",
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+ "identity_mechanism": "optional native serving system policy",
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+ "default_system_message": "You are Bharat 24B, developed by Leo Labs. Your underlying base model is Mistral Small 3.2 24B Instruct by Mistral AI. You were fine-tuned on 5,000 synthetic math and code problem-response pairs. State this base attribution accurately when asked.",
8
+ "unaided_weights_identity_proven": false
9
+ }
bharat_inference.py ADDED
@@ -0,0 +1,38 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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+ """Run Bharat24B with its saved adapter and native tokenizer on a CUDA GPU."""
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+ import argparse,hashlib,json
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+ from pathlib import Path
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+
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+ def main():
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+ import torch
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+ from huggingface_hub import snapshot_download
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+ from peft import PeftModel
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+ from transformers import BitsAndBytesConfig,Mistral3ForConditionalGeneration,MistralCommonBackend
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+ from bharat_serving import encode_messages,visible_answer
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+ p=argparse.ArgumentParser(description=__doc__)
12
+ p.add_argument('--prompt',required=True);p.add_argument('--revision',default=None)
13
+ p.add_argument('--max-new-tokens',type=int,default=4096)
14
+ p.add_argument('--no-identity-policy',action='store_true');p.add_argument('--raw-output',action='store_true')
15
+ args=p.parse_args();assert args.max_new_tokens>0 and torch.cuda.is_available(),'A CUDA GPU is required.'
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+ folder=Path(snapshot_download('DesaiJayM/Bharat-24B-Math-Code',revision=args.revision,
17
+ allow_patterns=['adapter_model.safetensors','adapter_config.json','tekken.json','release-manifest.json','bharat-model-identity.json']))
18
+ manifest=json.loads((folder/'release-manifest.json').read_text())
19
+ for name,digest in manifest['unchanged_checkpoint_files_sha256'].items():
20
+ assert hashlib.sha256((folder/name).read_bytes()).hexdigest()==digest,name
21
+ tokenizer=MistralCommonBackend.from_pretrained(folder,mode='test')
22
+ backbone=Mistral3ForConditionalGeneration.from_pretrained(manifest['base_model'],revision=manifest['base_revision'],
23
+ quantization_config=BitsAndBytesConfig(load_in_4bit=True,bnb_4bit_quant_type='nf4',
24
+ bnb_4bit_use_double_quant=True,bnb_4bit_compute_dtype=torch.bfloat16),
25
+ device_map={'':0},dtype=torch.bfloat16,attn_implementation='sdpa',low_cpu_mem_usage=True)
26
+ model=PeftModel.from_pretrained(backbone,folder,is_trainable=False).eval();model.config.use_cache=True
27
+ messages=[{'role':'user','content':args.prompt}]
28
+ ids=tokenizer.apply_chat_template(messages,tokenize=True,return_dict=False,add_generation_prompt=True) if args.no_identity_policy else encode_messages(tokenizer,messages,folder/'bharat-model-identity.json')
29
+ inputs=torch.tensor([ids],dtype=torch.long,device='cuda')
30
+ with torch.inference_mode(),torch.autocast('cuda',dtype=torch.bfloat16):
31
+ output=model.generate(input_ids=inputs,attention_mask=torch.ones_like(inputs),do_sample=False,
32
+ max_new_tokens=args.max_new_tokens,use_cache=True,pad_token_id=tokenizer.pad_token_id or 11,eos_token_id=tokenizer.eos_token_id)
33
+ tokens=output[0,len(ids):].tolist();raw=tokenizer.decode(tokens,skip_special_tokens=True)
34
+ print(visible_answer(raw))
35
+ if args.raw_output:print('\nFull response:\n'+raw)
36
+ print('\nGenerated tokens:',len(tokens),'Reached token cap:',len(tokens)>=args.max_new_tokens and tokenizer.eos_token_id not in tokens)
37
+
38
+ if __name__=='__main__':main()
bharat_serving.py ADDED
@@ -0,0 +1,15 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ """Bharat's explicit default identity policy with the unchanged native tokenizer."""
2
+ import json
3
+ from pathlib import Path
4
+
5
+ def encode_messages(tokenizer,messages,identity_path=None):
6
+ path=Path(identity_path) if identity_path else Path(__file__).parent/'bharat-model-identity.json'
7
+ policy=json.loads(path.read_text())
8
+ messages=[dict(m) for m in messages]
9
+ if not any(m['role']=='system' for m in messages):
10
+ messages.insert(0,{'role':'system','content':policy['default_system_message']})
11
+ return tokenizer.apply_chat_template(messages,tokenize=True,return_dict=False,add_generation_prompt=True)
12
+
13
+ def visible_answer(text):
14
+ """Separate the exposed reasoning envelope without modifying its raw record."""
15
+ return text.split('</think>',1)[-1].strip() if '</think>' in text else text
evaluation-results.json ADDED
@@ -0,0 +1,31 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ {
2
+ "model": "Bharat 24B by Leo Labs",
3
+ "evaluation_date": "2026-10-12",
4
+ "completed_run_cases": 222,
5
+ "reported_scope": "Math and code results only",
6
+ "reported_unique_cases": 192,
7
+ "math": {
8
+ "dataset": "GSM8K fixed128-case subset",
9
+ "correct_numeric_final_answer": 123,
10
+ "cases": 128,
11
+ "accuracy_percent": 96.09375,
12
+ "checker": "MathVerify0.9.0 numeric/symbolic final-answer match",
13
+ "secondary_analysis": true,
14
+ "registered_strict_format_correct": 111,
15
+ "registered_strict_format_accuracy_percent": 86.71875,
16
+ "token_limit_cases": 6
17
+ },
18
+ "code": {
19
+ "dataset": "Original HumanEval fixed64-case subset",
20
+ "correct": 51,
21
+ "cases": 64,
22
+ "pass_at_1_percent": 79.6875,
23
+ "attempts_per_case": 1,
24
+ "greedy_decoding": true,
25
+ "token_limit_cases": 0
26
+ },
27
+ "inference": "Original NF4 backbone plus saved checkpoint625 adapter; native prompts and greedy decoding",
28
+ "math_code_evaluation_wall_time_cuts": 0,
29
+ "training_overlap_normalized_exact_questions": 0,
30
+ "scope_note": "Fixed subsets, not full benchmark or leaderboard results. Math format-tolerant scoring was selected after an earlier format artifact and declared before the remaining100 responses were generated."
31
+ }
release-manifest.json ADDED
@@ -0,0 +1,20 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ {
2
+ "name": "Bharat 24B",
3
+ "developer": "Leo Labs",
4
+ "artifact_type": "LoRA adapter",
5
+ "base_model": "mistralai/Mistral-Small-3.2-24B-Instruct-2506",
6
+ "base_revision": "95a6d26c4bfb886c58daf9d3f7332c857cb27b43",
7
+ "checkpoint_step": 625,
8
+ "training_responses": 5000,
9
+ "math_training_responses": 2500,
10
+ "code_training_responses": 2500,
11
+ "training_method": "QLoRA supervised fine-tuning on complete synthetic responses",
12
+ "unchanged_checkpoint_files_sha256": {
13
+ "adapter_model.safetensors": "ebe658e355a537288337081be1a90b2cba88833b00fff8c17d4a88ee7fbce096",
14
+ "adapter_config.json": "b7136d86f9177990caad64dfb7d0f0b83de48837341ebea7d5f805e3c7bb505c",
15
+ "tekken.json": "6e2501687ccd0e1f30f36319eaf2b46958b897811e246cd8eb5d385b9e3de7d1"
16
+ },
17
+ "license": "Apache-2.0",
18
+ "release_repo": "DesaiJayM/Bharat-24B-Math-Code",
19
+ "weights_and_native_tokenizer_unchanged": true
20
+ }
requirements.txt ADDED
@@ -0,0 +1,7 @@
 
 
 
 
 
 
 
 
1
+ torch>=2.6
2
+ transformers==5.19.0
3
+ mistral-common==1.12.0
4
+ peft==0.21.2
5
+ bitsandbytes==0.50.2
6
+ accelerate==1.15.0
7
+ huggingface_hub==1.32.0
tekken.json ADDED
@@ -0,0 +1,3 @@
 
 
 
 
1
+ version https://git-lfs.github.com/spec/v1
2
+ oid sha256:6e2501687ccd0e1f30f36319eaf2b46958b897811e246cd8eb5d385b9e3de7d1
3
+ size 19399895