Benchmarks

Top models across a combined benchmark plus Artificial Analysis, LMArena, LiveBench, FrontierCode, Epoch AI, ARC Prize, EQ-Bench, Design Arena, and NanoGPT benchmark categories.

Combined

Equal-weight blend of Artificial Analysis Intelligence Index, LMArena Overall, LiveBench Overall, NanoGPT Usage Share. Each source is min-max normalized to 0-100 across its current leaderboard and weighted at 25%. Missing or unavailable source entries contribute 0.

Top 20 price vs performance

X-axis: $/M blended tokens

1.

Claude Opus 5.5
Anthropic logo

by Anthropic

64.4%

2.

43.7%

3.

Claude Fable 5.1
Anthropic logo

by Anthropic

39.8%

4.

Claude Sonnet 5.5
Anthropic logo

by Anthropic

36.5%

5.

25.3%

6.

Gemini 4 Carbon

Google logo

by Google

25.0%

7.

GPT 6 Astra
OpenAI logo

by OpenAI

23.7%

8.

GPT 6.1 Sol
OpenAI logo

by OpenAI

21.6%

9.

Qwen3.8
Qwen logo

by Qwen

20.6%

10.

GPT 6.1 Terra
OpenAI logo

by OpenAI

18.5%

Weighted blend of latest source snapshots

NanoGPT Composite