GPT-6.1 Sol

OpenAICurrent

Input price
$2.00
Per 1 million tokens (USD)
Output price
$10.00
Per 1 million tokens (USD)
Effort levels
5total
Default: Med
Benchmark results
15total
Benchmark types: 15

Model information

API model ID
gpt-6.1-sol
release date
2026-09-29
effort
Low / Med (default) / High / Xhigh / Max
Effort source
Based on reasoning effort on the OpenAI model page (developers.openai.com/api/docs/models/gpt-6.1-sol).
Claude Code
unavailable
Codex
available
Availability notes
Codex desktop app / CLI / IDE extension. Default 500K context in Codex/ChatGPT Work. Claude Code's official model list (code.claude.com/docs/en/model-config alias table) contains only Anthropic models, so claudeCode is false (connections via a gateway are not counted as official options).
Availability source
https://learn.chatgpt.com/docs/models

Price (USD per 1 million tokens)

Prices do not vary by effort; token consumption does.

input$2.00
output$10.00
cache read$0.10
cache write$2.50

Prompts with more than 272K input tokens are priced at 2x input and cache rates and 1.5x output for the full request. Batch/Flex 50%, Fast 2x. Ultrafast is 6x.

| gpt-6.1-sol | $2.00 | $10.00 | $0.10 | $2.50 | $5.00 | $4.00 | $15.00 | $0.20 | $5.00 | $10.00 |

Source: https://developers.openai.com/api/docs/pricing

Benchmark results

BenchmarkeffortScoreSource cost (metric)measured/reported bysourceConditions and extraction method
Terminal-Bench-Science 0.1MaxMax57.0%—OpenAIClaude Haiku 5.5 System Cardofficial · Retrieved 2026-11-14Vendor-reported value. Anthropic’s body text explicitly states OpenAI reported and max thinking effort. Distinguished from Anthropic’s internal runs and public leaderboard values. Cost not stated.transcribed from text
Source excerpt57.0%Location §8.5 “Terminal-Bench-Science 0.1”, body text, GPT-6.1 Sol under OpenAI reported
GDPval-AA v2.1not statednot stated1,609—Artificial AnalysisClaude Fable 5.2 and Claude Mythos 5.2 System Cardofficial · Retrieved 2026-11-14Vendor-reported value. Anthropic publishes values independently measured by Artificial Analysis. No effort is specified for GPT-6.1 Sol (Fable 5.2’s max is not applied). Cost not stated.transcribed from text
Source excerpt1609Location §8.14.3, body text, GPT-6.1 Sol Elo
AA-Briefcase v1.1(Elo)not statednot stated1,555—Artificial AnalysisClaude Fable 5.2 and Claude Mythos 5.2 System Cardofficial · Retrieved 2026-11-14Vendor-reported value. Anthropic publishes values independently measured by Artificial Analysis. No effort is specified for GPT-6.1 Sol (Fable 5.2’s max is not applied). Cost not stated.transcribed from text
Source excerpt1555Location §8.14.4, body text, GPT-6.1 Sol Elo
HealthBench Professional (length-adjusted score)not statednot stated64.2—OpenAIAddendum to GPT-6 Astra System Card: GPT-6.1 Terraofficial · Retrieved 2026-11-14Vendor-reported value. Self-reported by OpenAI. effort not stated. length-adjusted score. Parentheses contain the unadjusted score and mean response length in characters; only the leading value is used as score. Cost not stated.transcribed from table
Source excerpt64.2 (67.2, 3038)Location §5.1 Table 5, HealthBench Professional length-adjusted row, gpt-6-1-sol column
HealthBench Hard (length-adjusted score)not statednot stated36.2—OpenAIAddendum to GPT-6 Astra System Card: GPT-6.1 Terraofficial · Retrieved 2026-11-14Vendor-reported value. Self-reported by OpenAI. effort not stated. length-adjusted score. Parentheses contain the unadjusted score and mean response length in characters; only the leading value is used as score. Cost not stated.transcribed from table
Source excerpt36.2 (33.4, 1646)Location §5.1 Table 5, HealthBench Hard length-adjusted row, gpt-6-1-sol column
GPQA DiamondMaxMax95.4%—Epoch AIEpoch AI, Capabilities & benchmarking (benchmark_data.zip, gpqa_diamond.csv) CC BY 4.0third-party · Retrieved 2026-11-12Run by Epoch AI (third-party measurement). Source label "GPT-6.1 Sol (max)". effort is indicated by the suffix _max in Epoch's Model version. Data retrieved 2026-11-12.transcribed from table
Source excerptgpqa_diamond.csv: Model version=gpt-6.1-sol_max, Best score (across scorers)=0.9539141414141414, stderr=0.013780748450364692, Started at=2026-09-29T22:00:34.000Z
FrontierMath Tiers 1-3(v2)MaxMax93.7%—Epoch AIEpoch AI, Capabilities & benchmarking (benchmark_data.zip, frontiermath_tiers_1_3_v2.csv) CC BY 4.0third-party · Retrieved 2026-11-12Run by Epoch AI (third-party measurement). Source label "GPT-6.1 Sol (max)". effort is indicated by the suffix _max in Epoch's Model version. Data retrieved 2026-11-12.transcribed from table
Source excerptfrontiermath_tiers_1_3_v2.csv: Model version=gpt-6.1-sol_max, Best score (across scorers)=0.9368421052631579, stderr=0.014434038295343787, Started at=2026-09-29T22:00:34.000Z
FrontierMath Tier 4(v2)MaxMax100.0%—Epoch AIEpoch AI, Capabilities & benchmarking (benchmark_data.zip, frontiermath_tier_4_v2.csv) CC BY 4.0third-party · Retrieved 2026-11-12Run by Epoch AI (third-party measurement). Source label "GPT-6.1 Sol (max)". effort is indicated by the suffix _max in Epoch's Model version. Data retrieved 2026-11-12.transcribed from table
Source excerptfrontiermath_tier_4_v2.csv: Model version=gpt-6.1-sol_max, Best score (across scorers)=1.0, stderr=0.0, Started at=2026-09-29T22:00:34.000Z
OTIS Mock AIME 2024-2025MaxMax100.0%—Epoch AIEpoch AI, Capabilities & benchmarking (benchmark_data.zip, otis_mock_aime_2024_2025.csv) CC BY 4.0third-party · Retrieved 2026-11-12Run by Epoch AI (third-party measurement). Source label "GPT-6.1 Sol (max)". effort is indicated by the suffix _max in Epoch's Model version. Data retrieved 2026-11-12.transcribed from table
Source excerptotis_mock_aime_2024_2025.csv: Model version=gpt-6.1-sol_max, Best score (across scorers)=1.0, stderr=0.0, Started at=2026-09-29T22:00:34.000Z
SimpleQA VerifiedMaxMax73.9%—Epoch AIEpoch AI, Capabilities & benchmarking (benchmark_data.zip, simpleqa_verified.csv) CC BY 4.0third-party · Retrieved 2026-11-12Run by Epoch AI (third-party measurement). Source label "GPT-6.1 Sol (max)". effort is indicated by the suffix _max in Epoch's Model version. Data retrieved 2026-11-12.transcribed from table
Source excerptsimpleqa_verified.csv: Model version=gpt-6.1-sol_max, Best score (across scorers)=0.739, stderr=0.013895037677965185, Started at=2026-09-29T22:00:34.000Z
Chess Puzzles(Epoch AI)MaxMax68.0%—Epoch AIEpoch AI, Capabilities & benchmarking (benchmark_data.zip, chess_puzzles.csv) CC BY 4.0third-party · Retrieved 2026-11-12Run by Epoch AI (third-party measurement). Source label "GPT-6.1 Sol (max)". effort is indicated by the suffix _max in Epoch's Model version. Data retrieved 2026-11-12.transcribed from table
Source excerptchess_puzzles.csv: Model version=gpt-6.1-sol_max, Best score (across scorers)=0.68, stderr=0.04688261722621507, Started at=2026-10-13T12:40:12.000Z
MirrorCodeMaxMax61.1%—Epoch AIEpoch AI, Capabilities & benchmarking (benchmark_data.zip, mirrorcode.csv) CC BY 4.0third-party · Retrieved 2026-11-12Run by Epoch AI (third-party measurement). Source label "GPT-6.1 Sol (max)". effort is indicated by the suffix _max in Epoch's Model version. Data retrieved 2026-11-12.transcribed from table
Source excerptmirrorcode.csv: Model version=gpt-6.1-sol_max, Best score (across scorers)=0.6111111111111112, stderr=0.11346708571848581, Started at=2026-10-05T18:36:30.000Z
Epoch Capabilities Index(ECI)not statednot stated168.48—Epoch AIEpoch AI, epoch_capabilities_index/eci_scores.csv (CC BY 4.0)third-party · Retrieved 2026-11-12A per-model metric that combines results across multiple benchmarks and multiple efforts (not per effort). Calculated by Epoch AI.transcribed from table
Source excerpteci_scores.csv: Model=GPT-6.1 Sol, eci=168.48, eci_ci_low=165.49, eci_ci_high=171.8
LMArena Text (style control, overall)MaxMax1,482—LMArenalmarena-ai/leaderboard-dataset text_style_control/latest-00000-of-00001.parquet (CC BY 4.0)third-party · Retrieved 2026-11-12Human head-to-head votes (Bradley-Terry). Source label "GPT-6.1 Sol (Max)" (effort is in parentheses in the label). Release date 2026-11-09.transcribed from table
Source excerptmodel_name=GPT-6.1 Sol (Max), rating=1482.07, rating_lower=1475.7, rating_upper=1488.4, vote_count=12952, rank=27, category=overall, leaderboard_publish_date=2026-11-09
LMArena Text Coding (without style control)MaxMax1,486—LMArenalmarena-ai/leaderboard-dataset text/latest-00000-of-00001.parquet (CC BY 4.0)third-party · Retrieved 2026-11-12Human head-to-head votes (Bradley-Terry). Source label "GPT-6.1 Sol (Max)" (effort is in parentheses in the label). Release date 2026-11-09.transcribed from table
Source excerptmodel_name=GPT-6.1 Sol (Max), rating=1486.04, rating_lower=1473.8, rating_upper=1498.3, vote_count=2732, rank=45, category=coding, leaderboard_publish_date=2026-11-09

Related rankings

References