GPT-6.1 Sol vs GPT-6 Sol vs GPT-6 Luna

Best cell per row highlighted. Null means undisclosed — never counted as zero.

OpenAI
GPT-6.1 SolGA
9.5
AI Panel
OpenAI
GPT-6 SolGA
9.0
AI Panel
OpenAI
GPT-6 LunaGA
8.8
AI Panel

Identity & lifecycle

ProviderOpenAIOpenAIOpenAI
Family / tierGPT-6 · ProGPT-6 · ProGPT-6 · nano
StatusGAGAGA
Released2026-09-292026-09-222026-09-22
Knowledge cutoff2026-042026-042026-05

Architecture & context

Context window1.1M1.1M1.1M
Max output tokens128K128K128K
Input modalitiestext, imagetext, imagetext, image
Reasoning modealwaysoptionaloptional
Open weightsNoNoNo

Pricing (per Mtok)

Input$2$2$0.1
Output$10$10$0.5
Cached input$0.1$0.2$0.01
Batch input$1$1$0.05
Free tierNoNoYes

Speed

Output speed (tok/s)53——
Time to first token (s)5.5——
Latency tiermediummediumfast

Trust & deployment

Trains on inputsNoNoNo
LicenseProprietaryProprietaryProprietary
CloudsAzure OpenAI, Azure AI Foundry, BedrockAzure OpenAI, Azure AI Foundry, BedrockAzure AI Foundry, Bedrock
ComplianceSOC2, ISO27001, GDPR, CCPA, HIPAASOC2, ISO27001, GDPR, CCPA, HIPAASOC2, ISO27001, GDPR, CCPA, HIPAA

AI Panel scoring

Unified score9.598.8
Decision Maker9.489.2
Domain Strategist97.58.6
Finance Lead9.58.810
Domain Practitioner9.299.1
Power User8.88.28.2
Skeptic87.47.6
Value score9.5910

Benchmarks

GPQA Diamond95.494.3—
Humanity's Last Exam52.947.938.5
LMArena Elo—14571443
LMArena Coding Elo—15201512
Artificial Analysis Index524838

Scores link to their sources. Missing cells mean the vendor hasn't disclosed a result — honesty over padding.