Benchmark Almanac

IOI 2025

Fading

Model solves the 2025 International Olympiad in Informatics tasks. Scored with official subtask points (max 600).

Contest problems are public. No single public LLM harness found.

Made by IOI (problems); NVIDIA harness Released Aug 2025 Competitive programming All tasks public Last in a launch post Jun 2026 , dropped before it saturated Last model added Jun 2026
Level
Competition The strongest students, in olympiad-style contests
Scored
Checked automatically A program checks the result against an answer key, unit tests or the expected final state.
Answers
Code A program or patch run against tests.
2
Launch posts list it, from 1 lab
3
System cards report it, from 2 labs

No scores here yet

No lab, leaderboard or Epoch AI run has reported a score for IOI 2025 yet.

Labs headline it less often now, last in Jun 2026

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.

NVIDIA
DateLaunch postScoreAs the post writes it
4 Jun 2026 Nemotron 3 Ultra 570 IOI 2025
19 Mar 2026 Nemotron-Cascade 2 30B-A3B 439.3 IOI 2025

3 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
9 Jun 2026 Nemotron 3 Ultra technical report 570 IOI 2025, 570.0 points of 600 (Table 10) Capabilities
19 Mar 2026 Nemotron-Cascade 2 30B-A3B technical report 439.3 IOI 2025, 439.28 of 600 points, gold, test-time scaling pipeline (Tables 1 and 2) Capabilities
1 Dec 2025 DeepSeek-V3.2-Speciale technical report 492 IOI 2025, 492/600 points, gold medal, ranked 10th (Table 4) Capabilities

More in Coding

All 243 in Coding
  • SWE-bench Verified In use 500 human-validated GitHub issues from 12 Python repos. Agent writes a patch that must pass hidden tests. Claude Opus 4.7 83.5%
  • SWE-bench Multilingual In use 300 GitHub-issue tasks across nine programming languages in SWE-bench format. Patch graded by repository tests. Claude Opus 5.5 93.9%
  • LiveCodeBench v6 In use Competitive programming problems collected after model cutoffs from LeetCode, AtCoder, Codeforces. Scored pass@1 on hidden tests. DeepSeek-V4-Pro 93.5%
  • DeepSWE In use 113 original long-horizon engineering tasks across 91 repos and five languages, written from scratch. Hand-written verifiers accept alternative solutions. GPT-6 Astra 74.1%
  • SciCode In use Scientist-curated research coding problems split into subproblems across natural sciences. Code checked against test cases. Seed2.1 Pro 59.8%
  • Codeforces rating In use Model solves recent Codeforces contest problems. An Elo-style rating is computed from simulated contest performance. DeepSeek V4.1 Flash 3,471