GPT-5.6 Terra

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gpt-5.6-terra · OpenAI · text

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Platform

OpenAI

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API Pricing

Input / 1M

$2.5/M$1.75/M30% OFF

Output / 1M

$15/M$10.5/M30% OFF

Cache Read / 1M

$0.25/M$0.175/M30% OFF

Overview

GPT-5.6 Terra is a mid-tier model in the 5.6 series, with a 272K context window and 128K max output. It balances strong reasoning and coding performance with cost efficiency, well suited for general production tasks.

Capabilities

272K context window; multimodal understanding; strong reasoning; tool calling; Function Calling; JSON mode; structured outputs; coding.

Use Cases

General production tasks; balanced reasoning and coding; multimodal workloads; cost-sensitive agentic flows.

Limitations

Does not generate images natively; less capable than Sol on frontier tasks; 272K context ceiling.

Examples

Claude Code

Anthropic official CLI coding agent. Multi-file edits, tool use, long-context reasoning.

Terminal

export ANTHROPIC_AUTH_TOKEN="YOUR_API_KEY"
export ANTHROPIC_BASE_URL="https://api.robovai.com"
export ANTHROPIC_MODEL="gpt-5.6-terra"
claude

Context Window

272K ctx

Thinking Mode

Not supported

Overview

GPT-5.6 Terra, a mid-tier model in the 5.6 series, with a 272K context window and 128K output. Well-rounded performance for general production tasks.