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Gemini · Claude · AI Agent · AI Safety Institute ·

Claude Opus 4.1 charges $15 per million input tokens and $75 per million output

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Screenshot 2026-04-29 at 12.36.39 PM.

Gemini 2.0 Flash charges $0.10 and $0.40, a two-order-of-magnitude spread on input alone.

Key facts

Summary

AI evaluation has crossed a cost threshold that changes who can do it. The Holistic Agent Leaderboard (HAL) recently spent about $40,000 to run 21,730 agent rollouts across 9 models and 9 benchmarks. The cost problem started before agents. Another shocking observation came from Perlitz et al.'s analysis of EleutherAI's Pythia checkpoints: developers pay for evaluation repeatedly during model development. Perlitz et al. then asked how much of HELM carried the rankings. Other work reached the same conclusion from different angles. tinyBenchmarks compressed MMLU from 14,000 items to 100 anchor items at about 2% error using Item Response Theory.

#Gemini #Claude #AI Agent #AI Safety Institute