GPT-5.6 Terra: specs, pricing and how it performs in a council

GPT-5.6 Terra is OpenAI's model available on Council AI at $2.00 per million input tokens and $12.00 per million output, with a 1,050,000-token context window. GPT-5.6 production workhorse (GA Jul 9, 2026). 1M context at GPT-5.4 pricing. On Council you do not run it alone: the same prompt goes to up to 10 models from different labs in parallel, and a moderator synthesizes one answer with a consensus score showing where the labs agreed.

GPT-5.6 Terra specifications

What GPT-5.6 Terra is good at

GPT-5.6 production workhorse (GA Jul 9, 2026). 1M context at GPT-5.4 pricing.

Council surfaces it for: coding, general, agents.

It has native web search, so it can ground answers in current sources rather than training data alone.

GPT-5.6 Terra pricing on Council AI

Council does not resell tokens. Every paid plan carries a monthly budget and each model draws against it at cost: $2.00 in / $12.00 out per million tokens for GPT-5.6 Terra. Plans start at $19.99/mo (Plus), $39.99/mo (Pro) and $99.99/mo (Ultra, which adds the personal RAG library and MCP server).

If budget is the binding constraint, GLM-5.3 is the cheaper seat in the lineup at $1.40/$4.40.

Using GPT-5.6 Terra in a council

A single model — this one included — can be confidently wrong. Council runs GPT-5.6 Terra alongside models from other labs on the same prompt, then scores how much they agreed. High consensus is a signal you can act on the answer; low consensus surfaces the specific point they split on, which is usually the part worth checking yourself.

Other OpenAI models in the lineup: GPT-5.6 Sol, GPT-5.6 Luna.

Frequently asked questions