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Compare 2 AI Models

Gemini 4 Argon vs GPT-6.1 Sol

Gemini 4 ArgonGoogle
GPT-6.1 SolOpenAI

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$2 / $10 per million tokens
$2 / $10 per million tokens
Identity
DeveloperGoogleOpenAI
ReleasedSep 2026Sep 2026
StatusGA - generally available in the Gemini API since October 13, 2026GA
LicenceProprietaryProprietary
Self-hostableNoNo
Cost
Blended $/1M tokensinput × 0.75 + output × 0.25$4.000 / 1M tokens$4.000 / 1M tokens
Input price$2.000 / 1M tokens$2.000 / 1M tokens
Output price$10.000 / 1M tokens$10.000 / 1M tokens
Cached input$0.10 per 1M tokens through November 30, 2026; $0.20 from December 1 (implicit caching only)$0.10 per 1M tokens
Batch discountBatch and Flex: $1 / $5 per 1M through November 30, 2026; $2 / $10 from December 150% (Batch and Flex)
Free tierNo - not available on the Gemini API free tier—
Capacity
Context window1,048,576 tokens1,050,000 tokens
Max output65,536 tokens by default; up to 1,048,576 with long decode128,000 tokens
Long-context surcharge—Over 272K input tokens: 2x input/cache rates and 1.5x output for the full request
Capability
Vision inYesYes
Audio inYesNo
Function calling—Yes
Structured output—Yes
Extended reasoningYes - thinking levels low, medium and highYes
Web search—Yes
Code execution—Yes
Access
APIYes - Gemini API, paid tier only (not on the free tier)Yes
Chat appYes - Google AI Pro and Ultra subscribers, in the Gemini app and AI Mode in Search; Ultra subscribers also in Google AntigravityChatGPT Work and Codex; not Chat at launch
Fine-tuningNot statedNo
Measured quality
LMArena Elo1520 (checked Nov 2026)1481 (checked Nov 2026)
LMArena rankRank 2Rank 27
GPQA Diamond96 · high effort95 · max effort
Elo per dollarLMArena Elo ÷ blended $/1M tokens380370