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GPT 5.6 Terra
gpt-5.6-terraopenaiAvailableReleased 2026-07-09GPT-5.6 mid-tier that balances intelligence and cost — roughly the former mini class. Strong default for everyday agentic coding, production workflows, and scaled API usage without flagship pricing.
TextToolsThinkingThinking: low, medium, high, xhigh, max
Pricing comparison
Each route's consumer price, and what multiple of the official list price it charges. Requests start at the cheapest route and only move to the next one when it fails, so you normally pay the top rate here. Lowest ready quote is marked. USD per million tokens.
| Route | Rate | Input | Output | Cache read | Cache write |
|---|---|---|---|---|---|
| Official | 1x | $2.00/M | $12.00/M | $0.200/M | $2.50/M |
| MeridianLowest | 0.3x | $0.600/M | $3.60/M | $0.060/M | $0.750/M |
| Basalt | Pending | — | — | — | — |
/v1/responsesAvailable