OpenAI
GPT-5.6 Terra Pricing, Specs & Alternatives
Previous generation. Prefer GPT-6.1 Sol at the same input price.
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Questions
How much does GPT-5.6 Terra cost
GPT-5.6 Terra lists $2 per 1M input tokens and $12 per 1M output tokens, checked Nov 9, 2026 on developers.openai.com.
What is the GPT-5.6 Terra context window
1,050,000 tokens, per developers.openai.com, read Nov 9, 2026.
Who makes GPT-5.6 Terra
OpenAI.
What are alternatives to GPT-5.6 Terra
Claude Sonnet 5.5, DeepSeek V4 Pro, Gemini 3.1 Pro Preview, Gemini 3.6 Flash, Gemini 3.8 Flash.
Head to head
All comparisons- Claude Sonnet 5.5 vs GPT-5.6 Terra: GPT-5.6 Terra $2 / $12 vs Claude Sonnet 5.5 $2 / $10 per 1M tokens in / out.
- DeepSeek V4 Pro vs GPT-5.6 Terra: GPT-5.6 Terra $2 / $12 vs DeepSeek V4 Pro $1.32 / $3.96 per 1M tokens in / out.
- Gemini 3.1 Pro Preview vs GPT-5.6 Terra: GPT-5.6 Terra $2 / $12 vs Gemini 3.1 Pro Preview $2 / $12 per 1M tokens in / out.