Oct 26, 2026 · found Nov 9, 2026, 12:30 PM PT
GPT-6.1 Terra: $1/$5 per million tokens, Artificial Analysis confirms the cost drop
Verdict: Confirmed · Model releases · Benchmarks · Adoption and cost
OpenAI's docs confirm the price and Artificial Analysis independently measured a Coding Agent Index of 48 at $0.40 per task, though the launch post itself still does not open.
OpenAI’s GPT-6.1 Terra is a cheaper mid-tier model, released in late October.
- Claim: Standard pricing is $1 input and $5 output per million tokens, against $2 and $12 for GPT-5.6 Terra, with a 1.05M-token context window. OpenAI docs
- Evidence: Artificial Analysis measured cost per task at max effort of $0.40 versus $1.40 for GPT-5.6 Terra, a Coding Agent Index of 48 (GPT-6.1 Sol 54, GPT-6 Luna 31) and a hallucination rate of 38% versus 88%. Artificial Analysis
- Caveats: The launch post could not be opened, so OpenAI’s own benchmark claims were not read. The absolute Intelligence Index score was not on the page. Artificial Analysis
- Why it matters: Six points behind Sol on the Coding Agent Index, at a much lower price per token. Artificial Analysis
Verdict history
- Nov 9, 2026, 12:30 PM PT: Confirmed. Moved out of pending. openai.com launch post still 403. OpenAI developer docs page opened (price, context, no release date). Artificial Analysis article dated 26 Oct read; the absolute index score was not on the page.