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aiqbench

OpenAI · model passport

OpenAI: GPT-5.6 Sol

gpt-5-6-sol
  • Cloud only
  • Proprietary licence
  • 1,050,000 context
  • Released 2026-09-13(first seen on LMArena)
18/27axes covered
Overall · LMArena
1,485#18 of 396
Best percentile
100.0Search Arena
Cohort standing
81.1median 60.4

What the data says

Benchmarked on 18 of 27 tracked axes. Every figure below is the model's own published result on that board.

Strongest axes

  • 100 pct — Search Arena (1,258)
  • 100 pct — AIME (math) (100.0%)
  • 97.7 pct — Instruction following (1,491)

Uneven: 79 percentile points between its best and worst axis — 100 pct on Search Arena versus 21 pct on HHEM Hallucination (Vectara).

  • Search Arena100 pct1,258Verify →
  • AIME (math)100 pct100.0%Verify →
  • Instruction following97.7 pct1,491Verify →
  • Hard prompts97 pct1,511Verify →
  • Coding96.7 pct1,534Verify →
  • ARC-AGI-296.6 pct92.5%Verify →
  • Overall95.7 pct1,485Verify →
  • GPQA Diamond93.7 pct93.5%Verify →
  • SimpleQA Verified91.5 pct69.7%Verify →
  • Vision Arena91.3 pct1,287Verify →
  • Factuality Arena90.7 pct1,476Verify →
  • IFBench (Artificial Analysis)87.3 pct72.7%Verify →
  • Document Arena86.8 pct1,489Verify →
  • WebDev Arena84.2 pct1,617Verify →
  • Agent Arena83.6 pct0.074Verify →
  • SimpleBench82.8 pct64.8%Verify →
  • Terminal-Bench 4.056.5 pct37.3%Verify →
  • HHEM Hallucination (Vectara)21 pct87.6%Verify →
  • FrontierMathNot benchmarked
  • Humanity's Last ExamNot benchmarked
  • LiveBenchNot benchmarked
  • BFCL v4 (function calling)Not benchmarked
  • SWE-bench Verified (live board)Not benchmarked
  • MMLU-Pro (Artificial Analysis)Not benchmarked
  • LiveCodeBench (Artificial Analysis)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

API model IDopenai/gpt-5.6-sol
Context length1,050,000 tokens
Max output128,000 tokens
Acceptsfile, image, text
Input price$4 per 1M tokens
Cached input price$0.40 per 1M tokens
Output price$20 per 1M tokens

API parameters this endpoint supports

Include reasoningMax completion tokensMax tokensReasoningReasoning effortResponse formatSeedStructured outputsTool choiceTool callingVerbosity

Example request

curl https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $OPENROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"openai/gpt-5.6-sol","messages":[{"role":"user","content":"Hello"}]}'

View on OpenRouter →

Identifiers, limits and prices are synced from the upstream source shown above. Any field we haven't synced is left out entirely rather than guessed.

  • gpt-5.6-sol-xhigh stands at 81.1 (raw mean 86.3) — measured on 18 of 27 axes.

    standingtemplateVerify →

  • gpt-5.6-sol-xhigh stands at 81.1 versus a cohort median of 60.4 across 175 models released within 180 days — above the peer median.

    cohorttemplateVerify →

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 →