GPT-5.6 Terra via the Tokenator API
What the model is for
GPT-5.6 Terra is a balanced model in OpenAI's GPT-5.6 series, positioned between the flagship Sol tier and the cost-efficient Luna tier. It is suited for everyday coding, reasoning, and agentic tasks where capability and cost need to be balanced, offering strong performance at roughly half the cost of Sol.
Specification
| Full name | GPT-5.6 Terra |
| API ID | gpt-5.6-terra |
| Model vendor | OpenAI |
| Type | Text model (chat / completions) |
| Context window | 1M tokens |
| Max output | 128K tokens |
| Image input | yes |
| Tokenator usage multiplier | 1.7× |
| Input modalities | text, image, file |
| Aliases | cursor-gpt5.6-terra |
| Supported API formats | /v1/chat/completions /v1/responses /v1/messages |
| Upstream providers | 3 |
| Current status | available |
| Data updated | 2026-08-04 |
Benchmarks
| Intelligence index | 45.6 |
| Coding index | 64.7 |
| Agentic index | 37 |
Artificial Analysis data loaded into the catalog for this model.
Upstream providers
| Provider | Multiplier |
|---|---|
| OpenAI Plus | 1.7× |
| AiPartners Ltd | 1.7× |
| OpenAI Plus #2 | 1.7× |
A request goes to the first available provider by priority; if it fails, Tokenator switches to the next one.
Example request
curl https://api.tokenator.top/v1/chat/completions \ -H "Authorization: Bearer sk-your-tokenator-key" \ -H "Content-Type: application/json" \ -d '{ "model": "gpt-5.6-terra", "messages": [{"role": "user", "content": "Hello"}] }'
Compatible tools
The model can be used in any tool that accepts a custom base URL: Claude Code, Codex CLI, OpenCode, Cursor, Cline, Kilo Code, OpenClaw.
See also
FAQ about GPT-5.6 Terra
What is the API ID of GPT-5.6 Terra?
gpt-5.6-terra — put this into the model field of your request.
What context window does GPT-5.6 Terra have?
1M tokens; max output is 128K tokens.
How many tokens will a request cost?
(input + output) × 1.7×. See the documentation for details.
Which tools support this model?
Any tool that accepts a custom base URL: Claude Code, Codex CLI, OpenCode, Cursor, Cline, Kilo Code. Setup guides are in the integrations section.