Benchmark Almanac

AidanBench

o1 3204.0 leads since December 2024
Not in model cards

Models keep giving new answers to open-ended questions until answers become incoherent or repeat earlier ones. The count of fresh, coherent answers is the score, with no ceiling.

Rewards creativity and penalizes mode collapse. 322 GitHub stars. Prime Intellect hosts it as an environment.

Released
August 2024
Kind
Creative writing
Level
Everyday
Scored
Graded by a model
Answers
Open-ended
Tasks
All public
Strongest model tested
o1 #117 on the capability index
Last model added
February 2025
Scores refreshed
November 12th, 2026
25
Entries on its own leaderboard, 13 models we track

o1 leads with 3204.0 among models released by February 2025

Best score per entry from the benchmark's own leaderboard, read on November 12th, 2026. Where a model ran with several settings or harnesses, we keep its best. Names in gray aren't in our model list: fine-tunes, agent systems, products and older models. They don't count toward leaders.

The newest model with a score here came out in February 2025, and nobody has tested a newer one. Among the 20 highest-ranked models on the capability index, these have no score yet:

  1. 1 o1 3204.0
  2. 2 claude-3.5-sonnet (snapshot unspecified) 2691.0
  3. 3 Gemini 2.0 Flash Feb 2025 1895.0
  4. 4 o1-preview 1892.0
  5. 5 o1-mini 1577.0
  6. 6 gpt-4-turbo (snapshot unspecified) 1537.0
  7. 7 Gemini 2.0 Flash Thinking Jan 2025 1531.0
  8. 8 gemini-pro-1.5 (snapshot unspecified) 1515.0
  9. 9 Claude 3.5 Sonnet 1439.0
  10. 10 GPT-4o Aug 2024 1333.0
  11. 11 gpt-4-1106-preview 1331.0
  12. 12 GPT-4o Nov 2024 1269.0
  13. 13 GPT-4o May 2024 1052.0
  14. 14 gemini-flash-1.5 (snapshot unspecified) 1047.0
  15. 15 gemma-2-27b-it 1028.0
  16. 16 gpt-4-0314 999.0
  17. 17 mistral-large-latest (snapshot unspecified) 953.0
  18. 18 Claude 3 Opus 908.0
  19. 19 Claude 3.5 Haiku 904.0
  20. 20 chatgpt-4o-latest (snapshot unspecified) 900.0
  21. 21 gemma-2-9b-it 859.0
  22. 22 grok-beta 826.0
  23. 23 Llama 3.3 70B Instruct 779.0
  24. 24 llama-3.1-405b-instruct 778.0
  25. 25 GPT-4o mini 654.0

Source: Official AidanBench leaderboard

#EntryScoreSettingDateSource
1 o1 3204.0 Dec 2024 Official leaderboard
2 claude-3.5-sonnet (snapshot unspecified) 2691.0 Official leaderboard
3 Gemini 2.0 Flash Feb 2025 1895.0 Feb 2025 Official leaderboard
4 o1-preview 1892.0 Sep 2024 Official leaderboard
5 o1-mini 1577.0 Sep 2024 Official leaderboard
6 gpt-4-turbo (snapshot unspecified) 1537.0 Official leaderboard
7 Gemini 2.0 Flash Thinking Jan 2025 1531.0 Jan 2025 Official leaderboard
8 gemini-pro-1.5 (snapshot unspecified) 1515.0 Official leaderboard
9 Claude 3.5 Sonnet 1439.0 Jun 2024 Official leaderboard
10 GPT-4o Aug 2024 1333.0 Aug 2024 Official leaderboard
11 gpt-4-1106-preview 1331.0 Official leaderboard
12 GPT-4o Nov 2024 1269.0 Nov 2024 Official leaderboard
13 GPT-4o May 2024 1052.0 May 2024 Official leaderboard
14 gemini-flash-1.5 (snapshot unspecified) 1047.0 Official leaderboard
15 gemma-2-27b-it 1028.0 Official leaderboard
16 gpt-4-0314 999.0 Official leaderboard
17 mistral-large-latest (snapshot unspecified) 953.0 Official leaderboard
18 Claude 3 Opus 908.0 Feb 2024 Official leaderboard
19 Claude 3.5 Haiku 904.0 Oct 2024 Official leaderboard
20 chatgpt-4o-latest (snapshot unspecified) 900.0 Official leaderboard
21 gemma-2-9b-it 859.0 Official leaderboard
22 grok-beta 826.0 Official leaderboard
23 Llama 3.3 70B Instruct 779.0 Dec 2024 Official leaderboard
24 llama-3.1-405b-instruct 778.0 Official leaderboard
25 GPT-4o mini 654.0 Jul 2024 Official leaderboard

3 models have held number one on the official leaderboard since its release in August 2024

Lab claims count from the day the card came out, independent runs from the model’s release.

Anthropic OpenAI
Own leaderboard Not tested since Feb 2025
o1 3204.0

Source: Official AidanBench leaderboard

Scores over time

All the scores we have, one dot each, so a model tested at several settings appears more than once.

On the benchmark’s own leaderboard
0.00 1000.0 2000.0 3000.0 4000.0 2024 2025 0.00 1000.0 2000.0 3000.0 4000.0 2024 2025

Source: Official AidanBench leaderboard

No lab model card reports it yet

We read the headline results of 522 launch posts from 52 labs, and none of them list this benchmark.

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