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OpenAI · model passport

GPT-5.2 Chat

gpt-5-2-chat
  • Cloud only
  • Proprietary licence
  • 128,000 context
  • Released 2026-02-10(from model name)
6/27axes covered
Overall · LMArena
1,476#33 of 469
Best percentile
93.2Overall
Cohort standing
74.6median 59.6

What the data says

Benchmarked on 6 of 27 tracked axes. Every figure below is the model's own published result on that board.

Strongest axes

  • 93.2 pct — Overall (1,476)
  • 93 pct — Hard prompts (1,497)
  • 91.1 pct — Coding (1,515)

Uneven: 25 percentile points between its best and worst axis — 93.2 pct on Overall versus 68.2 pct on Factuality Arena.

  • Overall93.2 pct1,476Verify →
  • Hard prompts93 pct1,497Verify →
  • Coding91.1 pct1,515Verify →
  • Instruction following90 pct1,457Verify →
  • Vision Arena86.3 pct1,278Verify →
  • Factuality Arena68.2 pct1,450Verify →
  • WebDev ArenaNot benchmarked
  • Search ArenaNot benchmarked
  • Document ArenaNot benchmarked
  • Agent ArenaNot benchmarked
  • GPQA DiamondNot benchmarked
  • AIME (math)Not benchmarked
  • FrontierMathNot benchmarked
  • SimpleQA VerifiedNot 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

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-5.2-chatFollows OpenAI's own naming — check it against the linked model list before relying on it.
Context length128,000 tokens
Max output32,000 tokens
Acceptsfile, image, text
Input price$1.75 per 1M tokens
Cached input price$0.17 per 1M tokens
Output price$14 per 1M tokens

API parameters this endpoint supports

Max completion tokensResponse 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-5.2-chat","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-5.2 Chat (20260210) from openai has a composite score of 86.9 and covers 6 out of 27 axes with a shrunk score of 74.6.

    standingVerify →
  • GPT-5.2 Chat (20260210) from openai has a standing of 74.6, which is above the cohort median standing of 59.6 for the 145 models in the 180-day window.

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 →