Evaluation

promptfoo for tokenmaxxing

A bad prompt can spend tokens forever and still be wrong. Evals let you find the cheap-enough prompt before production does.

23K starspromptfoo/promptfoo
2.1K forksGitHub metadata checked 2026-07-07
MITDirect tokenmaxxing fit

What it does

A CLI and CI workflow for testing prompts, agents, and RAG systems across models, with evals and red-team style checks.

Why it belongs here

A bad prompt can spend tokens forever and still be wrong. Evals let you find the cheap-enough prompt before production does.

Best use case

Teams that want CI-style prompt, model, RAG, and agent checks before routing changes or prompt edits reach users.

How to use it

Create test cases for high-value workflows, compare models and prompts, and block changes that raise cost without preserving quality.

Limits

Evals are only as useful as the examples and grading criteria. They need maintenance as product behavior changes.

Tags

prompt-evalscirag
Related feed

Source notes connected to this use case

Anthropic source artwork
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Introducing Claude Sonnet 5

Anthropic launched Claude Sonnet 5 on June 30, priced at $2/$10 per million input/output tokens through Aug 31, then $3/$15. It pitches the model as approaching Opus 4.8 quality at a lower price.

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Generated Tokenmaxxing editorial thumbnail for Anthropic’s Economic Index maps the daily cadences of token use
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Anthropic’s Economic Index maps the daily cadences of token use

Anthropic’s June 2026 Economic Index ties Claude use to real-world rhythms: 93% of chats yield an artifact, marketing-manager sessions burn ~2.5x the tokens of editors, and app-building runs over 3x the median conversation.

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Generated Tokenmaxxing editorial thumbnail for Companies are scrambling to stop employees from maxing out AI budgets with small tasks | TechCrunch
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Companies are scrambling to stop employees from maxing out AI budgets with small tasks | TechCrunch

TechCrunch reports Accenture is reining in employees who spend premium AI tokens on trivial jobs — like converting PDFs into slide decks — after agentic AI lead Justice Kwak flagged spend turning unpredictable and material to costs.

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Generated Tokenmaxxing editorial thumbnail for How will AI tools be priced in a post-tokenmaxxing world?
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How will AI tools be priced in a post-tokenmaxxing world?

CFO Brew reports vendors including Pegasystems and Intercom are shifting from token-metered pricing toward outcome-based fees as buyers question whether uncapped AI spend ever paid for itself.

tokenmaxxingexplainerworkplace-ai
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