OpenAIProvisional

GPT-5.5

GPT-5.5 / Default · gpt-5.5

OpenAI flagship model for complex reasoning, coding, and professional agent workflows.

Objective score

35.5

Confidence

79%

Price evidence

$2.50 input / $15 output per 1M tokens

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Scenario evidence

Six task-specific rankings

Feature development#36Obj. 35.50 · 0%Debug and repair#17Obj. 560 · 0%Refactoring#15Obj. 560 · 0%Code review#14Obj. 58.10 · 0%Large-repo agent work#37Obj. 30.20 · 0%Frontend / UI#16Obj. 560 · 0%

Evidence state

Signal coverage

Benchmarks: 2
Rank points: 7
Usage: 2
Agent: 0
Sources: 7

Objective evidence

Benchmarks and public signals

Swebench: —
Livecodebench: —
Aider: —
Artificial Analysis: 74.9
Openrouter Usage: 0.1
Kilo Usage: —

Persistent history

Recent ranking points

Sep 15#32 · 38

Sep 15#32 · 38

Sep 15#32 · 38

Sep 14#32 · 38

Sep 14#32 · 38

Sep 14#32 · 38

Usage signals

OpenRouter0.1%

Overall0.1%

Agent and tool signals

Evidence is being collected. Missing data is not treated as zero.

Source trail

OpenAI model catalog recommends GPT-5.5 for complex reasoning and coding.Artificial Analysis Coding Agents · ok WebDev Arena · ok Kilo leaderboard · ok OpenRouter rankings · ok Kimi K2.7 Code model card · ok NVIDIA Nemotron 3 Ultra model card · ok LongCat 2.0 model card · ok