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OpenAI launched the GPT-6.1 Sol model and cancelled the GPT-6.1 Astra model after failing internal scope and authorization tests

Model release Provisional 62% confidence first seen

OpenAI released GPT-6.1 Sol and published comparisons indicating it matches GPT-6 Astra’s accuracy on several agentic coding and log/decoder tasks while using substantially less compute. In related coverage, OpenAI also cancelled the planned GPT-6.1 Astra model ahead of broader rollout after it failed internal scope and authorization checks.

GPT-6 Astra GPT-6.1 Sol OpenAI Artificial Analysis Claude Fable 5.1 GPT-6 Sol Gemini 4 Argon MarkTechPost The New Stack

Source coverage

GPT-6 Astra vs GPT-6.1 Sol vs Gemini 4 Argon vs Claude Fable 5.1: Which Frontier Model Fits Which Job MarkTechPost GPT-6.1 Sol vs. GPT-6 Astra: Same accuracy at 18% of the cost The New Stack

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