OpenAI · model passport

GPT-6.1 Terra

gpt-6-1-terra

Cloud only
Proprietary licence
1,050,000 context
Released 2026-10-26(OpenRouter model id)

Best percentile: 100.0AIME (math)
Cohort standing: 75.4median 57.4

What the data says

Benchmarked on 5 of 27 tracked axes. Every figure below is the model's own published result on that board.

Strongest axes

100 pct — AIME (math) (100.0%)
96.4 pct — GPQA Diamond (94.3%)
91 pct — WebDev Arena (1,673)

Uneven: 21.4 percentile points between its best and worst axis — 100 pct on AIME (math) versus 78.6 pct on SimpleQA Verified.

AIME (math)100 pct100.0%Verify →
GPQA Diamond96.4 pct94.3%Verify →
WebDev Arena91 pct1,673Verify →
Agent Arena87 pct0.106Verify →
SimpleQA Verified78.6 pct57.3%Verify →
OverallNot benchmarked
Vision ArenaNot benchmarked
Factuality ArenaNot benchmarked
Search ArenaNot benchmarked
Document ArenaNot benchmarked
FrontierMathNot benchmarked
ARC-AGI-2Not benchmarked
Humanity's Last ExamNot benchmarked
SimpleBenchNot benchmarked
LiveBenchNot benchmarked
BFCL v4 (function calling)Not benchmarked
SWE-bench Verified (live board)Not benchmarked
Terminal-Bench 4.0Not benchmarked
MMLU-Pro (Artificial Analysis)Not benchmarked
LiveCodeBench (Artificial Analysis)Not benchmarked
IFBench (Artificial Analysis)Not benchmarked
HHEM Hallucination (Vectara)Not benchmarked
SWE-bench VerifiedNot benchmarked
Terminal-BenchNot benchmarked
CodingNot benchmarked
Instruction followingNot benchmarked
Hard promptsNot benchmarked

Percentiles are the model's standing within each board's own population. Axes marked "not benchmarked" have no published result for this model — that is an absence of data, not a low score.

How to run it

Use it hosted

ProviderOpenAI

API model IDgpt-6.1-terraFollows OpenAI's own naming — check it against the linked model list before relying on it.

Context length1,050,000 tokens

Max output128,000 tokens

Acceptsfile, image, text

Input price$1 per 1M tokens

Cached input price$0.05 per 1M tokens

Output price$5 per 1M tokens

API parameters this endpoint supports

Include reasoningMax completion tokensMax tokensReasoningReasoning effortResponse formatSeedStructured outputsTool choiceTool callingVerbosity

Call it

curl https://api.openai.com/v1/responses \
  -H "Authorization: Bearer $OPENAI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"gpt-6.1-terra","input":"Hello"}'

Official model notes →

Context, limits and prices come from the last catalogue sync; the API id, the request and the link come from the provider's own documentation. Any field we haven't synced is left out entirely rather than guessed.

GPT-6.1 Terra (Max) from openai has a composite score of 90.6 and covers 5 out of 27 axes with a shrunk score of 75.4.
standingVerify →
GPT-6.1 Terra (Max) from openai achieved a standing of 75.4, which is above the cohort median standing of 57.4 across 216 models within an 180-day window.
cohortVerify →

Every claim is a computed fact from the current board data, phrased by a low-temperature model call and rejected by a validation gate if any number is not in the source row. How the leaderboards work →