GPT-5.6 Terra
GPT-5.6 TerraAlternatives?
CheaperGPT-6.1 Solmax+48%-48%$0.72Remove unsupported parameters+5
OpenKimi K3max-37%+43%$2.00Context: 1.05M → 1M+4CheaperGPT-6 Solmax+8%-25%$1.04
CheaperClaude Haiku 5.5max-12%-85%$0.21Context: 1.05M → 1M+6BetterGPT-5.6 Solmax+5%+42%$1.99GPT-6.1 Solmax+48%-48%$0.72Remove unsupported parameters+5GPT-6 Solmax+8%-25%$1.04Claude Haiku 5.5max-12%-85%$0.21Context: 1.05M → 1M+6GPT-6.1 Solmax+48%-48%$0.72Remove unsupported parameters+5GPT-6 Solmax+8%-25%$1.04GPT-5.6 Solmax+5%+42%$1.99
Gemini 4 Argonhigh+34%+42%*$1.99Context: 1.05M → 1M+3GPT-6 Astramax+48%+133%$3.26Monitoring can return HTTP 403+2Kimi K3maxOpen-37%+43%$2.00Context: 1.05M → 1M+4Kimi K2.6unstatedOpen-60%-62%$0.95 / $4Context: 1.05M → 256KGPT-6.1 Solmax+48%-48%$0.72Remove unsupported parameters+5GPT-6 Astramax+48%+133%$3.26Monitoring can return HTTP 403+2GPT-6 Solmax+8%-25%$1.04GPT-5.6 Solmax+5%+42%$1.99GPT-6 Lunamax-18%-95%$0.068Function calling only with none · Chat Completions+3GPT-5.5xhigh-18%+88%$2.63Prompts with >272K input tokensGPT-5.6 Lunamax-22%-87%$0.18GPT-5.2 (2025-12-11)xhigh-29%—$1.75 / $14Context: 1.05M → 400KAll OpenAI models →Benchmarks
in Agents & Tool UseWatch out 1
Prompts with >272K input tokens›
Above 272K input tokens, input costs 2× and output 1.5× for the full request. Source ↗
FAQ
How much does GPT-5.6 Terra cost?›
$2 per 1M input tokens and $12 per 1M output tokens; cached input $0.20 per 1M. A typical benchmark task costs about $1.40 at max effort.
Is GPT-5.6 Terra free to use?›
There is no free API; the cheapest paid price is $2 per 1M input tokens.
How good is GPT-5.6 Terra, and what is it best at?›
#32 of 334 in Chat & Knowledge, #15 of 132 in Coding, #20 of 133 in Agents & Tool Use, #46 of 195 in Writing & Language, #14 of 124 in Vision & Documents. Strongest at: Coding, Agents & work tasks, Tool calling, Reasoning, Science, Long context, Knowledge, Instructions, Vision.
Is GPT-5.6 Terra better than Muse Wonder?›
On Furniture Assembly, GPT-5.6 Terra scores 54.2 vs 54.2 — about the same.
How can I use GPT-5.6 Terra?›
Through the API of Amazon Bedrock, Azure, OpenAI.
What is the context window of GPT-5.6 Terra?›
1.05M tokens, with up to 128K output tokens.
When was GPT-5.6 Terra released? Is there a newer version?›
Released 2026-07-09. It is the current version in its line.
Is GPT-5.6 Terra open source?›
No, GPT-5.6 Terra is a closed model available through an API. The closest open-weights option here is Kimi K3.
Can GPT-5.6 Terra read images?›
It accepts text and images, PDF files as input.
What is GPT-5.6 Terra?›
GPT-5.6 Terra is a closed language model from OpenAI, released Jul 2026, the successor to GPT-3.5 Turbo.
What are the best alternatives to GPT-5.6 Terra?›
GPT-6.1 Sol (cheaper), Kimi K3 (open weights).