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OpenAI · Active

GPT-6 Luna

gpt-luna family · launched 2026-09-22

MultimodalReasoningToolsStructured
AITopic score72.2#22 overall

GPT-6 Luna is the fast, cost-efficient model in OpenAI's GPT-6 series, positioned below GPT-6 Sol. It is suited for high-volume and latency-sensitive workloads such as chat, classification, and lightweight agentic...

Evidence coverage95%5 evaluations · 2 institutions
Context / maximum output1.1M / 128ktokens
Cache / input / output$0.01 · $0.1 · $0.5USD per million tokens
Value / freshness91.1 / 88relative value · release freshness
Product profile

What this model supports

Inputtext, image, pdf
Outputtext
Knowledge cutoff2026-05-18
WeightsProprietary / hosted
Capability profile

Strengths by domain

Coding84.51 public results
Research & reasoning81.81 public results
Professional work64.31 public results
Knowledge & instruction43.51 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.

Coding1 results

LiveBench 2.0 · CodingLiveBench84.50 scoreReading 84.5

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

Configuration: LiveBench 2.0Open evidence

Research & reasoning1 results

LiveBench 2.0 · ResearchLiveBench81.80 scoreReading 81.8

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

Configuration: LiveBench 2.0Open evidence

Professional work1 results

LiveBench 2.0 · ProfessionalLiveBench64.28 scoreReading 64.3

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 2.0Open evidence

Knowledge & instruction1 results

LiveBench 2.0 · KnowledgeLiveBench43.50 scoreReading 43.5

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 2.0Open evidence

Human preference & indices3 results

Arena TextLMArena1,389.2 EloReading 72.2

Direct LMArena text leaderboard result.

Open evidence
LiveBenchLiveBench66.70 scoreReading 66.7

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

Configuration: LiveBench 2.0Open evidence
AA IndexArtificial Analysis58.67 indexReading 39.1

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

Configuration: LiveBench 2.0Open evidence