OpenAI: GPT-5 Nano Knowledge Cutoff Date
2024-05-31
Freshness Score
59

OpenAI: GPT-5 Nano

GPT-5-Nano is the smallest and fastest variant in the GPT-5 system, optimized for developer tools, rapid interactions, and ultra-low latency environments. While limited in reasoning depth compared to its larger...

AI Knowledge Cutoff

The AI knowledge cutoff is a specific date when an AI model stopped learning from its training data. This means the AI cannot know about world events, news, or new technologies that happened after that fixed point in time. The Freshness Score reflects the knowledge cutoff date's relative position on a 100-point scale between 2021 and now.

Data sourced from OpenRouter API and manual data collection | Last updated: Oct 12, 2026, 3:26 AM UTC

2026 Knowledge Cutoff AI Models

Model NameKnowledge CutoffFreshness Score
2026-08-28
98
2026-06-30
95
2026-06-30
95
2026-06-30
95
2026-05-31
94
2026-05-31
94
2026-05-18
93
2026-04-30
92
2026-04-30
92
2026-04-20
92
2026-03-31
91
2026-03-31
91
2026-02-16
89
2026-02-16
89
2026-02-16
89
2026-02-16
89
2026-02-16
89
2026-02-16
89
2026-02-01
88
2026-02-01
88
2026-01-31
88
2026-01-31
88
2026-01-31
88
2026-01-31
88

2025 Knowledge Cutoff AI Models

Model NameKnowledge CutoffFreshness Score
2025-12-31
86
2025-12-01
85
2025-12-01
85
2025-09-30
82
2025-09-30
82
2025-09-01
81
2025-09-01
81
2025-08-31
81
2025-08-31
81
2025-07-31
79
2025-06-30
78
2025-06-30
78
2025-06-30
78
2025-06-30
78
2025-06-30
78
2025-06-30
78
2025-06-30
78
2025-05-31
76
2025-05-31
76
2025-05-31
76
2025-03-31
73
2025-03-31
73
2025-03-31
73
2025-03-31
73
2025-03-31
73
2025-03-31
73
2025-03-31
73
2025-03-31
73
2025-03-31
73
2025-03-31
73
2025-03-31
73
2025-03-31
73
2025-03-31
73
2025-03-31
73
2025-02-28
72
2025-01-31
71
2025-01-31
71
2025-01-31
71
2025-01-31
71
2025-01-31
71
2025-01-31
71
2025-01-31
71
2025-01-31
71
2025-01-31
71
2025-01-31
71
2025-01-31
71
2025-01-31
71
2025-01-31
71
2025-01-31
71
2025-01-31
71
2025-01-31
71
2025-01-31
71
2025-01-31
71
2025-01-31
71
2025-01-01
69
2025-01-01
69

🤖 Generate website with AI 👆

Your all-in-one AI website builder. Join the beta waitlist.

2024 Knowledge Cutoff AI Models

Model NameKnowledge CutoffFreshness Score
2024-12-31
69
2024-12-31
69
2024-12-31
69
2024-12-31
69
2024-12-31
69
2024-11-30
68
2024-10-31
66
2024-10-31
66
2024-10-31
66
2024-09-30
65
2024-09-30
65
2024-09-30
65
2024-08-31
63
2024-08-31
63
2024-08-31
63
2024-08-31
63
2024-08-31
63
2024-08-31
63
2024-08-31
63
2024-08-31
63
2024-08-31
63
2024-07-31
62
2024-07-31
62
2024-07-31
62
2024-06-30
60
2024-06-30
60
2024-06-30
60
2024-06-30
60
2024-06-30
60
2024-06-30
60
2024-06-30
60
2024-06-30
60
2024-06-30
60
2024-06-30
60
2024-06-30
60
2024-06-30
60
2024-06-30
60
2024-06-30
60
2024-06-30
60
2024-06-30
60
2024-06-30
60
2024-06-30
60
2024-05-31
59
2024-05-31
59
2024-04-30
58
2024-04-30
58
2024-04-30
58
2024-04-30
58
2024-04-30
58
2024-03-31
56
2024-03-31
56
2024-03-31
56
2024-03-31
56
2024-01-31
53

2023 Knowledge Cutoff AI Models

🤖 Generate website with AI 👆

Your all-in-one AI website builder. Join the beta waitlist.

2022 Knowledge Cutoff AI Models

Model NameKnowledge CutoffFreshness Score
No results.

2021 Knowledge Cutoff AI Models

Model NameKnowledge CutoffFreshness Score
2021-09-30
13
2021-09-30
13
2021-09-30
13
2021-09-30
13
2021-09-30
13

🤖 Generate website with AI 👆

Your all-in-one AI website builder. Join the beta waitlist.