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.

MetricGPT-5.6 Terra
X-High
GPT-5.5
X-High
GPT-5.6 Luna
X-High
Intelligence Index81.682.375.4
Cost / typical task$0.37$0.80$0.089
$/M in · out$2.50 · $15$5 · $30$1 · $6
Context window1.05M400K1.05M
Median speed150 tok/s140 tok/s230 tok/s
MMLU-Pro88.089.084.0
GPQA Diamond88.089.082.0
Humanity's Last Exam34.035.024.0
AIME 202596.097.088.0
SWE-bench Verified78.078.072.0
LiveCodeBench84.085.079.0
τ²-bench85.086.078.0
IFEval93.093.090.0

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