Benchmark Almanac

Putnam 2025

DeepSeek-V3.2-Speciale 103.0 leads since December 2025
DeepSeek-V4-Pro 120.0 leads since April 2026
Fading

Models solve the 12 problems of the 2025 William Lowell Putnam competition with full proofs. Scored out of 120 points.

DeepSeek scored it with a hybrid informal and formal Lean pipeline checked by a strict verifier.

Released
December 2025
Kind
Written proofs
Level
Competition
Scored
Graded by people
Answers
Written proof
Tasks
All public
Strongest model tested
Gemini 3 Pro #55 on the capability index
Last in a launch post
December 2025, dropped before it saturated
Last model added
June 2026
Scores refreshed
November 12th, 2026
2
Models scored in lab cards
2
Launch posts list it, from 2 labs
2
System cards report it, from 2 labs

DeepSeek-V4-Pro leads with 120.0

Best score per model as labs report them in their own cards. Labs pick their own settings, so these compare less cleanly than independent runs.

DeepSeek-V3.2-Speciale leads with 103.0 across all independent runs

Best score per model across MathArena’s leaderboard, Epoch AI’s own runs and any board Epoch AI copied. Each bar and row names its source.

DeepSeek-V4-Pro leads with 120.0, claims included

Best score per model from every source, including labs’ own numbers and claims Epoch AI collected from reports and papers. Labs pick their own settings, so a claim can beat an independent run of the same model.

  1. 1 DeepSeek-V4-Pro 120.0
  2. 2 Seed-Prover 1.5 11.0

Source: Labs’ model cards

#ModelScoreSettingDateSource
1 DeepSeek-V4-Pro 120.0 Apr 2026 Lab model card
2 Seed-Prover 1.5 11.0 Dec 2025 Lab model card
#ModelScoreSettingDateSource
1 DeepSeek-V3.2-Speciale 103.0 MathArena agent Dec 2025 Official leaderboard
2 GPT-5 Pro 93.0 Oct 2025 Official leaderboard
3 Gemini 3 Pro 91.0 Nov 2025 Official leaderboard
4 GPT-5.1 58.0 high Nov 2025 Official leaderboard
#ModelScoreSettingDateSource
1 DeepSeek-V4-Pro 120.0 Apr 2026 Lab model card
2 DeepSeek-V3.2-Speciale 103.0 MathArena agent Dec 2025 Official leaderboard
3 GPT-5 Pro 93.0 Oct 2025 Official leaderboard
4 Gemini 3 Pro 91.0 Nov 2025 Official leaderboard
5 GPT-5.1 58.0 high Nov 2025 Official leaderboard
6 Seed-Prover 1.5 11.0 Dec 2025 Lab model card

MathArena’s leaderboard has 5 entries, 4 of them models we track. Switch the scores above to rank them together.

Number one over time Number one over time 2 models have held number one with claims included since its release in December 2025

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

DeepSeek
MathArena leaderboard Not tested since Dec 2025

Source: MathArena’s leaderboard

Scores over time

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

On MathArena’s leaderboard Reported by the lab in its model card
0.00 25.0 50.0 75.0 100.0 125.0 2026 0.00 25.0 50.0 75.0 100.0 125.0 2026

Sources: MathArena’s leaderboard and labs’ model cards

Labs headline it less often now, last in December 2025

Launch posts from every lab that has listed it, one tick per post. Tall colored ticks include it, and short gray ones leave it out.

Nous Research
ByteDance Seed
DateLaunch postScoreAs the post writes it
Dec 19, 2025 Seed-Prover 1.5 11 Putnam 2025, 11 of 12 problems in 9 hours
Dec 9, 2025 Nomos 1 72.5 Putnam 2025: 87/120 with the Nomos reasoning harness

2 system cards report it, from 2 labs

Besides launch posts, we read the system cards, model cards and technical reports labs publish with a release. They report far more, including safety and frontier-risk tests.

DateDocumentScoreAs the document writes itSection
Jun 9, 2026 Nemotron 3 Ultra technical report 96.7 Putnam 2025, 116/120, generate-verify-refine test-time scaling, human graded (Table 11) Capabilities
Apr 26, 2026 DeepSeek-V4-Pro technical report 120 Putnam-2025, hybrid formal-informal pipeline, 120/120 (Figure 8 right). The figure names the model only as DeepSeek-V4 Capabilities

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