models.fyi

Side by side, same effort tier

Pick up to four models. Every column is evaluated at the tier you choose (resolved to the nearest tier each model supports), so the comparison is what you'd actually deploy.

MetricGrok 4.1
Medium
GPT-5.5
Medium
Claude Fable 5
Medium
Claude Opus 4.8
Medium
Intelligence Index70.276.678.075.5
Cost / typical task$0.057$0.032$0.19$0.090
$/M in · out$3 · $15$1.25 · $10$10 · $50$5 · $25
Context window256K400K1M1M
Median speed90 tok/s140 tok/s65 tok/s55 tok/s
MMLU-Pro83.487.788.786.7
GPQA Diamond76.681.982.881.0
Humanity's Last Exam27.332.234.027.6
AIME 202573.383.482.680.0
SWE-bench Verified66.673.377.175.2
LiveCodeBench73.879.980.878.0
τ²-bench71.379.181.079.1
IFEval88.292.193.192.1

Hover a benchmark name for what it measures — full plain-language guide on /benchmarks· preview data.