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Datasets:
pooria
/
benchmark-cost-per-task

Tasks:
Text Generation
Modalities:
Text
Formats:
json
Languages:
English
Size:
< 1K
Tags:
benchmark
llm-evaluation
ai-benchmark
agent-benchmark
agent-evaluation
model-evaluation
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metadata 
license: mit
language:
  - en
pretty_name: Cost Per Task
tags:
  - benchmark
  - llm-evaluation
  - ai-benchmark
  - agent-benchmark
  - agent-evaluation
  - model-evaluation
  - cost-per-task
  - llm-cost
  - evals
  - grading
  - openrouter
  - openai
  - mcp
  - typescript
task_categories:
  - text-generation
size_categories:
  - n<1K
configs:
  - config_name: default
    data_files:
      - split: test
        path: data/tasks.jsonl

Cost Per Task

Dollars per verified result, not tokens per second.

What it measures

Cost, retries, turns, and tokens required for deterministic back-office task success.

Category: agents. Status: alpha.

How to run 

$ npx benchmark-cost-per-task list
$ npx benchmark-cost-per-task run --model <model-id> --provider openrouter
$ npx benchmark-cost-per-task score results.json

--provider mock runs the whole benchmark offline with no keys. Real models run through OpenRouter (OPENROUTER_API_KEY) or any OpenAI-compatible base URL (OPENAI_BASE_URL, OPENAI_API_KEY).

Data fields

data/tasks.jsonl holds 30 tasks, one JSON object per line (kinds: 30 episode).

field type
id string
kind string
prompt string
input object
expected object
metadata object

Provenance

Cost Per Task provenance

This file is generated from the benchmark definition.

Seeded back-office episodes

  • Kind: synthetic
  • URL: https://github.com/pooriaarab/benchmark-cost-per-task/blob/main/scripts/gen-tasks.mjs
  • Licence: MIT
  • Retrieved: 2026-10-15T00:00:00.000Z
  • How to get it: Run node scripts/gen-tasks.mjs --seed 20261015 --split public from the repository root.
  • Contamination notes: The public tasks and generator are visible. Use --split hidden with an unpublished seed for final evaluations.
  • Refresh: Generate and review a new public seed every six months.

OpenRouter model price snapshot

  • Kind: live-feed
  • URL: https://openrouter.ai/api/v1/models
  • Licence: NOASSERTION
  • Retrieved: 2026-10-15T08:04:45.790Z
  • How to get it: Run node scripts/fetch-prices.mjs; no API key is required.
  • Contamination notes: Factual pricing metadata, not evaluation content; OpenRouter states no separate data licence for the endpoint.
  • Refresh: Refresh before releases and at least monthly; retain git history for audits.

Grader

Deterministic replay followed by exact virtual file-system and CRM state verification.

Limitations

This dataset contains only the public task split (30 tasks). Hidden evaluation splits use a private seed and are deliberately not part of this dataset. Source kinds: live-feed, synthetic. These are evaluation prompts for the benchmark-cost-per-task benchmark, not training data; scoring requires the package's deterministic grader. See PROVENANCE.md for contamination notes.

Citation 

@misc{benchmark_cost_per_task,
  author = {Pooria Arab},
  title = {Cost Per Task task data},
  year = {2026},
  url = {https://github.com/pooriaarab/benchmark-cost-per-task}
}

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