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.

23.1K starspromptfoo/promptfoo
2.1K forksGitHub metadata checked 2026-07-10
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

Palantir AI sovereignty manifesto artwork
newsTN
newsmedium review

Palantir's 9-point manifesto decries tokenmaxxing and champions 'AI sovereignty'

Palantir dropped a 9-point 'AI sovereignty' manifesto on X, branding tokenmaxxing a hit of 'false progress' and taking direct aim at OpenAI and Anthropic's per-token pricing. CEO Alex Karp's jab: 'Why are they charging for tokens?'

tokenmaxxingexplainerworkplace-ai
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Anthropic source artwork
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news

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.

tokenmaxxingcoding-agentsagents
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O’Reilly Radar: The End of Tokenmaxxing artwork
newsOM
news

The End of Tokenmaxxing

O'Reilly's Mike Loukides argues the tokenmaxxing era ends once finance notices the bill: GitHub Copilot swapped unlimited access for $0.01 credits, GPT-5.5 costs 2x GPT-5.4, and Claude Fable doubles Opus 4.8 per token.

tokenmaxxingexplainerworkplace-ai
Read note
Generated Tokenmaxxing editorial thumbnail for Anthropic’s Economic Index maps the daily cadences of token use
long-formA
long-form

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.

tokenmaxxingcoding-agentsllm-observability
Read note
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