#81 GPT-5.2

OpenAI · gpt-5.2

Released: 11.12.2025 · Source

GPT-5.2 is a model from OpenAI. Exact version: gpt-5.2. See the source for capabilities and limitations.

Use cases: Coding, Image understanding, Reasoning, Text
Accepts: Text & code, Images
Produces: Text & code
Context: 400000 tokens

Access

OpenAI · API Computing: Cloud

Price USD

No verified data

Evaluator & score

Epoch AI · ECI153.51

Composite index · published model-group index · 20.09.2026 · Higher is better

Snapshot: 2026-09-20 · 90% CI [151.75, 155.43]

Official Epoch AI index; combines own, third-party and developer-reported results. It is not a safety audit or a media-generation score.

Conditions

Epoch Capabilities Index; official model-group estimates

Official ECI model scores, Epoch AI, CC BY 4.0. Composite of own, third-party and developer-reported results. 90% bootstrap interval. Not a per-effort score; export date is the model release date, not measurement date. Methodology: https://epoch.ai/eci#documentation

Epoch AI · Chess Puzzles40 %

Independent run · high · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

Chess Puzzles; Epoch AI own run; best score across scorers

Epoch AI own run; Chess Puzzles; version: gpt-5.2-2025-12-11_high; mode: high; source id: R3bUSJCQiuGjg6TzBo7k8Q; file: chess_puzzles.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 11.12.2025

Epoch AI · Chess Puzzles23 %

Independent run · low · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

Chess Puzzles; Epoch AI own run; best score across scorers

Epoch AI own run; Chess Puzzles; version: gpt-5.2-2025-12-11_low; mode: low; source id: SUBFSiYKfaantxswKig2a2; file: chess_puzzles.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 11.12.2025

Epoch AI · Chess Puzzles40 %

Independent run · medium · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

Chess Puzzles; Epoch AI own run; best score across scorers

Epoch AI own run; Chess Puzzles; version: gpt-5.2-2025-12-11_medium; mode: medium; source id: fCzTfk9GNPokGEVSg2ry4s; file: chess_puzzles.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 11.12.2025

Epoch AI · Chess Puzzles4 %

Independent run · none · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

Chess Puzzles; Epoch AI own run; best score across scorers

Epoch AI own run; Chess Puzzles; version: gpt-5.2-2025-12-11_none; mode: none; source id: jMRYcMRgjaXW3N6q2JogNW; file: chess_puzzles.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 13.07.2026

Epoch AI · Chess Puzzles49 %

Independent run · xhigh · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

Chess Puzzles; Epoch AI own run; best score across scorers

Epoch AI own run; Chess Puzzles; version: gpt-5.2-2025-12-11_xhigh; mode: xhigh; source id: manual_gpt_5.2_xhigh_chess_puzzles_frankenstein; file: chess_puzzles.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 15.12.2025

Epoch AI · EBR-bench23.016 %

Independent run · xhigh · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

EBR-bench; Epoch AI own run; best score across scorers

Epoch AI own run; EBR-bench; version: gpt-5.2-2025-12-11_xhigh; mode: xhigh; source id: 3542DFKGpjD6k8AZfGKD7W; file: ebr_bench.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 26.06.2026

Epoch AI · FrontierMath40.345 %

Independent run · high · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

FrontierMath; Epoch AI own run; best score across scorers

Epoch AI own run; FrontierMath-2025-02-28-Private; version: gpt-5.2-2025-12-11_high; mode: high; source id: dcQtgoUnQbkqTT6Cueo8Re; file: frontiermath.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 11.12.2025

Epoch AI · FrontierMath26.552 %

Independent run · low · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

FrontierMath; Epoch AI own run; best score across scorers

Epoch AI own run; FrontierMath-2025-02-28-Private; version: gpt-5.2-2025-12-11_low; mode: low; source id: NghuUppaqcCUtT8BqRgUL6; file: frontiermath.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 11.12.2025

Epoch AI · FrontierMath36.897 %

Independent run · medium · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

FrontierMath; Epoch AI own run; best score across scorers

Epoch AI own run; FrontierMath-2025-02-28-Private; version: gpt-5.2-2025-12-11_medium; mode: medium; source id: BWGVnFerZCyKTuc86w7c5q; file: frontiermath.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 11.12.2025

Epoch AI · FrontierMath40.7 %

Independent run · xhigh · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

FrontierMath; Epoch AI own run; best score across scorers

Epoch AI own run; FrontierMath-2025-02-28-Private; version: gpt-5.2-2025-12-11_xhigh; mode: xhigh; source id: hYCViU82i8tejydKA4Pcuu; file: frontiermath.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 13.12.2025

Epoch AI · FrontierMath-Tier-4-2025-07-01-Private18.8 %

Independent run · high · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

FrontierMath-Tier-4-2025-07-01-Private; Epoch AI own run; best score across scorers

Epoch AI own run; FrontierMath-Tier-4-2025-07-01-Private; version: gpt-5.2-2025-12-11_high; mode: high; source id: TjaWpQnjPC8SNJH8EDcXSS; file: frontiermath_tier_4.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 11.12.2025

Epoch AI · FrontierMath-Tier-4-2025-07-01-Private6.25 %

Independent run · low · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

FrontierMath-Tier-4-2025-07-01-Private; Epoch AI own run; best score across scorers

Epoch AI own run; FrontierMath-Tier-4-2025-07-01-Private; version: gpt-5.2-2025-12-11_low; mode: low; source id: BvgEDgU5ahio7wQBUMD3oE; file: frontiermath_tier_4.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 11.12.2025

Epoch AI · FrontierMath-Tier-4-2025-07-01-Private16.7 %

Independent run · medium · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

FrontierMath-Tier-4-2025-07-01-Private; Epoch AI own run; best score across scorers

Epoch AI own run; FrontierMath-Tier-4-2025-07-01-Private; version: gpt-5.2-2025-12-11_medium; mode: medium; source id: 92XEociAUsCM7WC9knviuo; file: frontiermath_tier_4.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 11.12.2025

Epoch AI · FrontierMath-Tier-4-2025-07-01-Private18.8 %

Independent run · xhigh · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

FrontierMath-Tier-4-2025-07-01-Private; Epoch AI own run; best score across scorers

Epoch AI own run; FrontierMath-Tier-4-2025-07-01-Private; version: gpt-5.2-2025-12-11_xhigh; mode: xhigh; source id: XLLXdo2tmmvqRwYxbn3kmo; file: frontiermath_tier_4.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 14.12.2025

Epoch AI · FrontierMath-Tier-4-v2-Private31.7 %

Independent run · xhigh · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

FrontierMath-Tier-4-v2-Private; Epoch AI own run; best score across scorers

Epoch AI own run; FrontierMath-Tier-4-v2-Private; version: gpt-5.2-2025-12-11_xhigh; mode: xhigh; source id: J3NUxsK2GXq9Whkjn7mEVm; file: frontiermath_tier_4_v2.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 11.06.2026

Epoch AI · FrontierMath-Tiers-1-3-v2-Private67.4 %

Independent run · xhigh · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

FrontierMath-Tiers-1-3-v2-Private; Epoch AI own run; best score across scorers

Epoch AI own run; FrontierMath-Tiers-1-3-v2-Private; version: gpt-5.2-2025-12-11_xhigh; mode: xhigh; source id: PeZ84GTQdSYQzDxRMWA2Ha; file: frontiermath_tiers_1_3_v2.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 11.06.2026

Epoch AI · GPQA Diamond88.194 %

Independent run · high · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

GPQA Diamond; Epoch AI own run; best score across scorers

Epoch AI own run; GPQA diamond; version: gpt-5.2-2025-12-11_high; mode: high; source id: 3Q6osT8EYezayG7yfxkSpr; file: gpqa_diamond.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 11.12.2025

Epoch AI · GPQA Diamond82.702 %

Independent run · low · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

GPQA Diamond; Epoch AI own run; best score across scorers

Epoch AI own run; GPQA diamond; version: gpt-5.2-2025-12-11_low; mode: low; source id: oD4Jpoi75KWChqTPDaN9aB; file: gpqa_diamond.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 11.12.2025

Epoch AI · GPQA Diamond87.879 %

Independent run · medium · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

GPQA Diamond; Epoch AI own run; best score across scorers

Epoch AI own run; GPQA diamond; version: gpt-5.2-2025-12-11_medium; mode: medium; source id: MuhtxxvALeZZ37cSG5CVcc; file: gpqa_diamond.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 11.12.2025

Epoch AI · GPQA Diamond73.232 %

Independent run · none · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

GPQA Diamond; Epoch AI own run; best score across scorers

Epoch AI own run; GPQA diamond; version: gpt-5.2-2025-12-11_none; mode: none; source id: 4sPs53wmM9bvN8JXzsiNCk; file: gpqa_diamond.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 13.07.2026

Epoch AI · GPQA Diamond91.4 %

Independent run · xhigh · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

GPQA Diamond; Epoch AI own run; best score across scorers

Epoch AI own run; GPQA diamond; version: gpt-5.2-2025-12-11_xhigh; mode: xhigh; source id: Ejo6Fy7XYxUDcCwbejfcYX; file: gpqa_diamond.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 13.12.2025

Epoch AI · Mock AIME 2024/202596.111 %

Independent run · high · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

Mock AIME 2024/2025; Epoch AI own run; best score across scorers

Epoch AI own run; OTIS Mock AIME 2024-2025; version: gpt-5.2-2025-12-11_high; mode: high; source id: LiUMZyNSM8q93KDubWgYCh; file: otis_mock_aime_2024_2025.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 11.12.2025

Epoch AI · Mock AIME 2024/202578.889 %

Independent run · low · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

Mock AIME 2024/2025; Epoch AI own run; best score across scorers

Epoch AI own run; OTIS Mock AIME 2024-2025; version: gpt-5.2-2025-12-11_low; mode: low; source id: 5Hcw3Td96qF66quWrDMKJB; file: otis_mock_aime_2024_2025.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 11.12.2025

Epoch AI · Mock AIME 2024/202593.889 %

Independent run · medium · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

Mock AIME 2024/2025; Epoch AI own run; best score across scorers

Epoch AI own run; OTIS Mock AIME 2024-2025; version: gpt-5.2-2025-12-11_medium; mode: medium; source id: Z2ZwwqLDDrBrEYhtKtFLCQ; file: otis_mock_aime_2024_2025.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 11.12.2025

Epoch AI · Mock AIME 2024/202562.222 %

Independent run · none · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

Mock AIME 2024/2025; Epoch AI own run; best score across scorers

Epoch AI own run; OTIS Mock AIME 2024-2025; version: gpt-5.2-2025-12-11_none; mode: none; source id: UBKiF8QVUmHwqgx4rF7CDA; file: otis_mock_aime_2024_2025.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 13.07.2026

Epoch AI · Mock AIME 2024/202596.1 %

Independent run · xhigh · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

Mock AIME 2024/2025; Epoch AI own run; best score across scorers

Epoch AI own run; OTIS Mock AIME 2024-2025; version: gpt-5.2-2025-12-11_xhigh; mode: xhigh; source id: R393BZjXtkEYju29gs5R8B; file: otis_mock_aime_2024_2025.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 13.12.2025

Epoch AI · Mystery Game Puzzles23 %

Independent run · high · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

Mystery Game Puzzles; Epoch AI own run; best score across scorers

Epoch AI own run; Mystery Game Puzzles; version: gpt-5.2-2025-12-11_high; mode: high; source id: AsFSc8AQu4F46Tzp4xVwYu; file: mystery_game_puzzles.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 06.08.2026

Epoch AI · Mystery Game Puzzles10 %

Independent run · low · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

Mystery Game Puzzles; Epoch AI own run; best score across scorers

Epoch AI own run; Mystery Game Puzzles; version: gpt-5.2-2025-12-11_low; mode: low; source id: bLxTUZHmq3YkRejnh6baqZ; file: mystery_game_puzzles.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 27.08.2026

Epoch AI · Mystery Game Puzzles22 %

Independent run · medium · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

Mystery Game Puzzles; Epoch AI own run; best score across scorers

Epoch AI own run; Mystery Game Puzzles; version: gpt-5.2-2025-12-11_medium; mode: medium; source id: KHS8JvzY7n9EFgpcjEkj5v; file: mystery_game_puzzles.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 28.08.2026

Epoch AI · Mystery Game Puzzles14 %

Independent run · none · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

Mystery Game Puzzles; Epoch AI own run; best score across scorers

Epoch AI own run; Mystery Game Puzzles; version: gpt-5.2-2025-12-11_none; mode: none; source id: eSfCVMMp2HXYqvpVpyNjjr; file: mystery_game_puzzles.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 27.08.2026

Epoch AI · SWE-bench Verified73.76 %

Independent run · high · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

SWE-bench Verified; Epoch AI own run; best score across scorers

Epoch AI own run; SWE-Bench verified; version: gpt-5.2-2025-12-11_high; mode: high; source id: 9owdbpnWJ5pkQQC3GWKP5L; file: swe_bench_verified.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 12.02.2026

Epoch AI · SimpleQA Verified34.3 %

Independent run · high · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

SimpleQA Verified; Epoch AI own run; best score across scorers

Epoch AI own run; SimpleQA Verified; version: gpt-5.2-2025-12-11_high; mode: high; source id: Xp4qkZ32zjDeSYii2eQpnm; file: simpleqa_verified.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 27.08.2026

Epoch AI · SimpleQA Verified32.8 %

Independent run · low · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

SimpleQA Verified; Epoch AI own run; best score across scorers

Epoch AI own run; SimpleQA Verified; version: gpt-5.2-2025-12-11_low; mode: low; source id: Cyw3GA9a64AmT4pqLAhtTF; file: simpleqa_verified.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 27.08.2026

Epoch AI · SimpleQA Verified32.7 %

Independent run · medium · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

SimpleQA Verified; Epoch AI own run; best score across scorers

Epoch AI own run; SimpleQA Verified; version: gpt-5.2-2025-12-11_medium; mode: medium; source id: esr5dcSuHiVoteo6vZfHjP; file: simpleqa_verified.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 27.08.2026

Epoch AI · SimpleQA Verified37.1 %

Independent run · xhigh · 20.09.2026 · Higher is better

Snapshot: 2026-09-20

Conditions

SimpleQA Verified; Epoch AI own run; best score across scorers

Epoch AI own run; SimpleQA Verified; version: gpt-5.2-2025-12-11_xhigh; mode: xhigh; source id: E3325ytkSNYP8ez53VA4fE; file: simpleqa_verified.csv. CC BY 4.0, Epoch AI. Snapshot 2026-09-20. Source column Best score (across scorers), not AIpedia's selection of the best effort.

Measurement date: 27.08.2026

SourceVerified 20.09.2026