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.

MetricKimi K2 Thinking
High
GPT-5.5
High
Claude Sonnet 5
High
GLM-5.2
High
Intelligence Index75.380.777.275.8
Cost / typical task$0.032$0.097$0.12$0.021
$/M in · out$0.60 · $2.50$1.25 · $10$3 · $15$0.60 · $2.20
Context window256K400K1M200K
Median speed50 tok/s140 tok/s80 tok/s95 tok/s
MMLU-Pro84.088.785.085.6
GPQA Diamond84.086.884.081.6
Humanity's Last Exam23.034.124.025.0
AIME 202589.093.188.085.6
SWE-bench Verified71.076.876.074.7
LiveCodeBench77.083.780.078.6
τ²-bench80.083.882.079.7
IFEval87.092.891.089.5

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