GPT-6.1 Terra.

First reported Oct 26, 2026, 18:25 UTC

Source reports

GPT-6.1 Terra. OpenAI’s newest model is live. And it’s currently matching GPT-6 Astra on Agents’ Last Exam at one-tenth the price per token. ⟢ $0.05 cached input ⟢ $1 in/$5 out. per million tokens. ⟢ 50% cheaper than GPT-5.6 Terra. ⟢ Over 3x faster on tasks than both Astra &… — @zhodonx (X), Oct 26, 2026, 18:25 UTC

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