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Independent model intelligence

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not just the loudest one.

Compare current model capability, context, modalities, public preference and API economics in one continuously refreshed decision surface.

LiveBench 2.0 LMArena models.dev OpenRouter AIHOT cross-check
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OpenAI · Active

GPT-5.5

gpt family · launched 2026-04-23

MultimodalReasoningToolsStructured
AITopic score62.7#52 overall

Default frontier GPT for coding, computer use, research, and knowledge work

Evidence coverage100%9 evaluations · 3 institutions
Context / maximum output1.1M / 128ktokens
Cache / input / output$0.5 · $5 · $30USD per million tokens
Value / freshness39.3 / 63relative value · release freshness
Product profile

What this model supports

Inputtext, image, pdf
Outputtext
Knowledge cutoff2025-12-01
WeightsProprietary / hosted
Capability profile

Strengths by domain

Coding59.32 public results
Research & reasoning67.62 public results
Professional work—2 public results
Knowledge & instruction65.42 public results
Behind the score

Every result has a source

Raw results and standardized readings are shown together. Missing tests add neither points nor penalties.

Coding2 results

LiveBench 2.0 · CodingLiveBench85.10 scoreReading 85.1

Imported from LiveBench 2.0. The published 0–100 score is used directly; it is not z-score normalized.

Configuration: LiveBench 2.0, AIHOT aggregateOpen evidence
AIHOT · CodingAIHOT59.30 scoreReading 59.3

Imported from AIHOT aggregate leaderboard. The published 0–100 score is used directly; it is not z-score normalized.

Configuration: AIHOT aggregateOpen evidence

Research & reasoning2 results

LiveBench 2.0 · ResearchLiveBench89.70 scoreReading 89.7

Imported from LiveBench 2.0. The published 0–100 score is used directly; it is not z-score normalized.

Configuration: LiveBench 2.0, AIHOT aggregateOpen evidence
AIHOT · ResearchAIHOT67.60 scoreReading 67.6

Imported from AIHOT aggregate leaderboard. The published 0–100 score is used directly; it is not z-score normalized.

Configuration: AIHOT aggregateOpen evidence

Professional work2 results

AIHOT · ProfessionalAIHOT61.70 scoreReading 61.7

Imported from AIHOT aggregate leaderboard. The published 0–100 score is used directly; it is not z-score normalized.

Configuration: AIHOT aggregateOpen evidence
LiveBench 2.0 · ProfessionalLiveBench61.13 scoreReading 61.1

Imported from LiveBench 2.0. The published 0–100 score is used directly; it is not z-score normalized. Professional = long-agentic, browser, data-analysis and design average.

Configuration: LiveBench 2.0, AIHOT aggregateOpen evidence

Knowledge & instruction2 results

AIHOT · KnowledgeAIHOT65.40 scoreReading 65.4

Imported from AIHOT aggregate leaderboard. The published 0–100 score is used directly; it is not z-score normalized.

Configuration: AIHOT aggregateOpen evidence
LiveBench 2.0 · KnowledgeLiveBench61.60 scoreReading 61.6

Imported from LiveBench 2.0. The published 0–100 score is used directly; it is not z-score normalized. Knowledge uses the published LiveBench research suite.

Configuration: LiveBench 2.0, AIHOT aggregateOpen evidence

Human preference & indices4 results

LiveBenchLiveBench68.70 scoreReading 68.7

Imported from LiveBench 2.0. The published 0–100 score is used directly; it is not z-score normalized.

Configuration: LiveBench 2.0, AIHOT aggregateOpen evidence
Arena TextLMArena1,466.8 EloReading 62.7

Direct LMArena text leaderboard result.

Open evidence
AIHOT aggregate leaderboardAIHOT62.70 scoreReading 62.7

Imported from AIHOT aggregate leaderboard. The published 0–100 score is used directly; it is not z-score normalized.

Configuration: AIHOT aggregateOpen evidence
AA IndexArtificial Analysis66.39 indexReading 62.5

Imported from Artificial Analysis. The published 0–100 score is used directly; it is not z-score normalized.

Configuration: AIHOT aggregateOpen evidence
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