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Aria V7.1

Aria is a 14B assistant built by Sergio Williams on Qwen3-14B-Base, developed as the core model for MnemonicAI. This repo's main holds V7.1, the current release. (V7.0 weights remain available in this repo's commit history.)

Benchmarks

100 held-out GSM8K-style math + 10 identity probes, identical raw plain-ChatML serving for all three (Intel Arc A770 / ollama):

Model Math Identity Wall time
v5 (previous live) 46/100 0/10 695s
V7.0 69/100 8/10 837s
V7.1 71/100 8/10 514s

Honest read: +2 math over V7.0 is within noise on a 100-question set. The meaningful gains are the 38% latency reduction and a fully clean, verified training corpus. Against the previous live v5: +25 math points and 0→8 identity.

Training

  • Unsloth QLoRA on Qwen3-14B-Base, ~2.55 epochs, seq 2048, LoRA r32/α32
  • Target modules include lm_head + embed_tokens (see below), plain ChatML, response-only loss
  • 17,522 verified examples, deduplicated: math 11,183 (answer-checked vs gold) · code 3,309 (execution-verified — every solution ran its own assert tests) · deep/ultra reasoning 1,206 · chat 937 · balancing 379 · multi-turn 250 · identity 205 · max-thinking 53
  • Teachers: kimi-k2.5/2.6/2.7-code, Claude Opus & Sonnet, Fable 5, deepseek-v4-pro
  • Dedup removed 501 duplicate prompts and 768 duplicate code solutions

The stop-token fix

Earlier versions rambled and never terminated. Two causes:

  1. Serving with an injected empty <think>\n\n</think> block (enable_thinking=false) triggers non-stop generation.
  2. More fundamentally: Qwen3-Base never emits <|im_end|> during pretraining, and attention/MLP-only LoRA can never surface that token — the output head must be trainable.

V7.1 fixes this structurally by putting lm_head+embed_tokens in the LoRA and leaving terminators unmasked in the loss. Result: a 5/5 clean-stop gate — every probe emits <|im_end|> and terminates.

Serving requirements (important)

  • Use the plain Qwen3 ChatML template. Never inject an empty <think> block / enable_thinking=false.
  • Stop tokens: <|im_end|> and <|endoftext|>.
<|im_start|>system
You are Aria, a helpful AI assistant created by Sergio Williams.<|im_end|>
<|im_start|>user
{message}<|im_end|>
<|im_start|>assistant

Known quirks

  • A rare stray non-English token can appear immediately before the stop token (cosmetic; trim app-side).

Base model licence: Qwen3-14B-Base, Apache-2.0.

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