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
High
Claude Fable 5
High
GPT-5.5
High
Intelligence Index76.282.280.7
Cost / typical task$0.18$0.54$0.097
$/M in · out$3 · $15$10 · $50$1.25 · $10
Context window256K1M400K
Median speed90 tok/s65 tok/s140 tok/s
MMLU-Pro85.689.788.7
GPQA Diamond83.587.886.8
Humanity's Last Exam29.836.134.1
AIME 202587.492.293.1
SWE-bench Verified71.880.876.8
LiveCodeBench79.584.783.7
τ²-bench77.885.883.8
IFEval89.593.892.8

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