GPT-6.1 Terra
GPT-6.1 TerraRankingat medium effort?
Alternatives?
CheaperGemini 3.8 Flashlow-21%-25%*$0.75 / $3.75Context: 1.05M → 1M+2BetterGPT-6.1 Sollow+39%+37%$0.13Remove unsupported parameters+5
OpenMuse Spark Openxhigh-9%+786%$0.84Context: 1.05M → 1M+2Lower effortSame modellow-12%-43%$0.055
BetterClaude Opus 5.5low+43%+479%$0.55Context: 1.05M → 1M+6Gemini 3.8 Flashlow-21%-25%*$0.75 / $3.75Context: 1.05M → 1M+2GPT-6.1 Sollow+39%+37%$0.13Remove unsupported parameters+5Claude Opus 5.5low+43%+479%$0.55Context: 1.05M → 1M+6GPT-6 Astralow+50%+758%$0.82Monitoring can return HTTP 403+2
Grok 4.7low+9%+981%$1.03Context: 1.05M → 500K+5Gemini 3.1 Pro Previewthinking+18%+1,407%$1.44Context: 1.05M → 1M+1Muse Spark OpenxhighOpen-9%+786%$0.84Context: 1.05M → 1M+2
Kimi K3maxOpen-27%+2,000%$2.00Context: 1.05M → 1M+4
Step 5 PreviewthinkingOpen-40%+978%$1.03Context: 1.05M → 1M+3
GLM 5.3maxOpen-47%+2,006%$2.01Context: 1.05M → 1M+5MMotif 3Open-62%-56%$0.50 / $2Context: 1.05M → 262K+1GPT-6 Astramedium+56%+1,517%$1.54Monitoring can return HTTP 403+2GPT-6.1 Solmedium+47%+124%$0.21Remove unsupported parameters+5GPT-6 Solmediumsame+160%$0.25GPT-5.6 Solmedium-28%+430%$0.50GPT-5.5medium-33%+704%$0.77Prompts with >272K input tokensGPT-5.5 Instant (May 2026)-59%——Context: 1.05M → 400KGPT-5.3 Codexxhigh-60%—$1.75 / $14Context: 1.05M → 400K+1GPT-5.5 Instant (June 2026)-86%+497%$0.57Context: 1.05M → 400KAll OpenAI models →History
2 versionsBenchmarks
all categoriesFAQ
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 $0.095 at medium 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?›
#27 of 135 in Agents & Tool Use, #46 of 336 in Chat & Knowledge, #24 of 134 in Coding, #9 of 125 in Vision & Documents. Strongest at: Coding, Reasoning, Long context, Knowledge, Vision.
Is GPT-6.1 Terra better than Muse Wonder Full?›
On AA Omniscience Index, GPT-6.1 Terra scores 29.8 vs 30.2 — about the same.
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 Muse Spark Open.
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?›
Gemini 3.8 Flash (cheaper), GPT-6.1 Sol (better), Muse Spark Open (open weights).