The Model Index
Up to four models

Compare

Side by side on the same independent tests, with price and context. The link in your address bar shares this exact comparison.

Qwen3.5 397B-A17BGPT-5.4
Next to Qwen3.5 397B-A17B
Presets
Qwen3.5 397B-A17B
147130–164
WeightsOpen
ReleasedFeb 2026
Price in / out$0.55 / $3.5
Context262K
Core tests taken3 of 9
GPT-5.4
172155–188
WeightsClosed
ReleasedMar 2026
Price in / out$2.5 / $15
Context1.05M
Core tests taken7 of 9

GPT-5.4 leads Qwen3.5 397B-A17B by 25 points, ahead on 3 of 3 shared core tests, at 4.4× the price.

Test by testindependent results

Qwen3.5 397B-A17BGPT-5.4
0%25%50%75%100%REASONING & KNOWLEDGEGPQA Diamond (Epoch AI)GPQA Diamond (Epoch AI)MATHSFrontierMath (tiers 1-3)FrontierMath (tiers 1-3)AIME-style maths (OTIS mock)AIME-style maths (OTIS mock)Chess puzzlesChess puzzlesAGENTSAPEX-AgentsAPEX-AgentsDTBenchDTBenchLMCALMCAMystery game puzzlesMystery game puzzles
Task length · METR45 sec

Tests at least two of these models have taken. Bold rows are the core tests.