AIpedia#54 GPT-5 nano
Released: · SourceGPT-5 nano is a model from OpenAI. Exact version: gpt-5-nano. 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
Price USD
No verified data
Evaluator & score
Composite index · published model-group index · 20.09.2026 · Higher is better
Snapshot: 2026-09-20 · 90% CI [135.2, 141.56]
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
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-nano-2025-08-07_high; mode: high; source id: dPZQeTGY4XnqpvVjxwJxsT; 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: 07.08.2026
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-nano-2025-08-07_low; mode: low; source id: Rx5uL3T8a98sPqQB64hMS8; 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
Independent run · minimal · 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-nano-2025-08-07_minimal; mode: minimal; source id: BPmKTW8xgSttzDbetkDZEW; 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
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-nano-2025-08-07_high; mode: high; source id: 2eMHpXXR9h7P2oNPDQkTBY; 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: 30.10.2025
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-nano-2025-08-07_medium; mode: medium; source id: dHQzrNGjuR5kiHKtNxG62X; 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: 07.08.2025
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-nano-2025-08-07_high; mode: high; source id: CvK572G5SSd5Yk8ZGikDR6; 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: 30.10.2025
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-nano-2025-08-07_medium; mode: medium; source id: F6Tw2b9fDKde6N9eBu6ory; 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: 07.08.2025
Independent run · high · 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-nano-2025-08-07_high; mode: high; source id: P5v3FUnVVTbaqaCr43deKi; 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: 12.06.2026
Independent run · high · 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-nano-2025-08-07_high; mode: high; source id: JH3PjDrbrQndEcc8fh5Qre; 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: 12.06.2026
Independent run · low · 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-nano-2025-08-07_low; mode: low; source id: kfDcrjxJgjsW8CvG3L8yxz; 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: 27.08.2026
Independent run · minimal · 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-nano-2025-08-07_minimal; mode: minimal; source id: nFt6PoshWAVXE6iH9PQgo2; 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: 27.08.2026
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-nano-2025-08-07_high; mode: high; source id: 2pSDjMSGDh4HsAxkqUuNQP; 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: 30.10.2025
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-nano-2025-08-07_low; mode: low; source id: mNZ34pXP8JN779JoHnjNQc; 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
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-nano-2025-08-07_medium; mode: medium; source id: ELAxkvAigvEVdMmhxiaMiy; 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: 07.08.2025
Independent run · minimal · 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-nano-2025-08-07_minimal; mode: minimal; source id: hp4x7bhBYhkQqZoZFf4dTZ; 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
Independent run · high · 20.09.2026 · Higher is better
Snapshot: 2026-09-20
Conditions
MATH level 5; Epoch AI own run; best score across scorers
Epoch AI own run; MATH level 5; version: gpt-5-nano-2025-08-07_high; mode: high; source id: TYQuXJw9H8NRjSovr5VoBn; file: math_level_5.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: 20.08.2025
Independent run · medium · 20.09.2026 · Higher is better
Snapshot: 2026-09-20
Conditions
MATH level 5; Epoch AI own run; best score across scorers
Epoch AI own run; MATH level 5; version: gpt-5-nano-2025-08-07_medium; mode: medium; source id: SSLfQCm7RvLhSv5aPKaLNk; file: math_level_5.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: 20.08.2025
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-nano-2025-08-07_high; mode: high; source id: Y9YnaJQWpPFAPhe6jtKMhH; 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: 31.10.2025
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-nano-2025-08-07_low; mode: low; source id: 298stsbTPpZp7toZsS5cp8; 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
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-nano-2025-08-07_medium; mode: medium; source id: XRFS8R4WV7q6RMv5keEAdM; 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: 07.08.2025
Independent run · minimal · 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-nano-2025-08-07_minimal; mode: minimal; source id: kJHhuWKGEEunTq9FxwKx9E; 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
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-nano-2025-08-07_high; mode: high; source id: aW4ppDktWqoy5qVWMUws6z; 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
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-nano-2025-08-07_low; mode: low; source id: PLbKjMLohFB9epj3qHPcuS; 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
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-nano-2025-08-07_medium; mode: medium; source id: ZwQdGcba6Hez4ztMzmZP9j; 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
Independent run · minimal · 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-nano-2025-08-07_minimal; mode: minimal; source id: RVRYWkwXwrvbCyZW8AhqEm; 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
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-nano-2025-08-07_high; mode: high; source id: KgUCEfVCyRnY8B5kVChyiD; 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: 10.08.2026