GPT-6.1 Terra
GPT-6.1 TerraAlternatives?
BetterGPT-6.1 Solhigh+11%+65%$0.32Remove unsupported parameters+5
OpenGLM 5.3max-10%+936%$2.01Context: 1.05M → 1M+5Lower effortSame modelhigh-10%-31%$0.13
BetterClaude Opus 5.5medium+13%+590%$1.34Context: 1.05M → 1M+6BetterGPT-6 Astramedium+7%+695%$1.54Monitoring can return HTTP 403+2GPT-6.1 Solhigh+11%+65%$0.32Remove unsupported parameters+5Claude Opus 5.5medium+13%+590%$1.34Context: 1.05M → 1M+6GPT-6 Astramedium+7%+695%$1.54Monitoring can return HTTP 403+2
Gemini 4 Argonhigh+23%+736%*$1.62Context: 1.05M → 1M+3Claude Sonnet 5.5xhigh+23%+939%$2.01Context: 1.05M → 1M+6GLM 5.3maxOpen-10%+936%$2.01Context: 1.05M → 1M+5
MiMo v2.6 ProthinkingOpen-25%-31%$0.13Context: 1.05M → 1M+4
DeepSeek V4.1 Flash 1017maxOpen-27%+35%$0.26Context: 1.05M → 1M+5
Ling 3.1 FlashOpen-28%+422%$1.01Context: 1.05M → 1M+1
Step 5 PreviewthinkingOpen-28%+430%$1.03Context: 1.05M → 1M+3GPT-6 Astraxhigh+28%+1,092%$2.31Monitoring can return HTTP 403+2GPT-6.1 Solxhigh+16%+103%$0.39Remove unsupported parameters+5GPT-6 Solxhigh-35%+169%$0.52GPT-5.6 Solxhigh-47%+511%$1.18GPT-5.5xhigh-68%+984%$2.10Prompts with >272K input tokensGPT-5.5 Instant (June 2026)-73%+194%$0.57Context: 1.05M → 400KGPT-5.6 Terraxhigh-78%+226%$0.63Prompts with >272K input tokensGPT-6 Lunaxhigh-83%-78%$0.042Function calling only with none · Chat Completions+3All OpenAI models →History
2 versionsFAQ
How much does GPT-6.1 Terra cost?›
$1 per 1M input tokens and $5 per 1M output tokens; cached input $0.05 per 1M (cheapest host: OpenRouter). A typical benchmark task costs about $0.19 at xhigh effort.
Is GPT-6.1 Terra free to use?›
There is no free API; the cheapest paid price is $1 per 1M input tokens.
How good is GPT-6.1 Terra, and what is it best at?›
#20 of 135 in Agents & Tool Use, #27 of 336 in Chat & Knowledge, #10 of 134 in Coding, #6 of 125 in Vision & Documents. Strongest at: Coding, Agents & work tasks, Reasoning, Long context, Knowledge, Vision.
Is GPT-6.1 Terra better than GPT-6.1 Sol?›
On Terminal-Bench 4.0, GPT-6.1 Terra scores 55.6 vs 56.1 — about the same. It is 73% cheaper per task.
How can I use GPT-6.1 Terra?›
Through the API of OpenRouter.
What is the context window of GPT-6.1 Terra?›
1.05M tokens, with up to 128K output tokens.
When was GPT-6.1 Terra released? Is there a newer version?›
Released 2026-10-26. It is the current version in its line.
Is GPT-6.1 Terra open source?›
No, GPT-6.1 Terra is a closed model available through an API. The closest open-weights option here is GLM 5.3.
Can GPT-6.1 Terra read images?›
It accepts text and images, PDF files as input.
What is GPT-6.1 Terra?›
GPT-6.1 Terra is a closed language model from OpenAI, released Oct 2026.
What are the best alternatives to GPT-6.1 Terra?›
GPT-6.1 Sol (better), GLM 5.3 (open weights).