Gemini 2.5 Flash Preview 05-20

Google DeepMind
Gemini 2.5 Flash Preview 05-20 launch post cover
Context
1Mtokens
Released
1y ago

Benchmarks

DeepSWE is the primary coding benchmark where an exact model evaluation exists. Arena leaderboards and other sourced evaluations appear below; missing scores are not zero.

How it ranks

Against its predecessor, similarly priced models and the models ranked around it.

DeepSWE 1.1

Best pass@1 per model · Higher is better

Not evaluated in DeepSWE 1.1

Arena Text

Best Arena rating per model · Higher is better

Not ranked on Arena Text yet

Arena WebDev

Best Arena rating per model · Higher is better

Not ranked on Arena WebDev yet

Arena Vision

Best Arena rating per model · Higher is better

Not ranked on Arena Vision yet

Arena Search

Best Arena rating per model · Higher is better

Not ranked on Arena Search yet

Arena Document

Best Arena rating per model · Higher is better

Not ranked on Arena Document yet

Agent Arena

Best IPS score per model · Higher is better

Not ranked on Agent Arena yet

ARC-AGI-2

Best score per model · Higher is better

#71 of 85

  1. 8.6%
    Claude Opus 4Similar release date
  2. 4.9%
    o3 ProSimilar release date
  3. 4.0%
    DeepSeek V3.2Nearby rank
  4. 2.6%
    GPT-5 NanoNearby rank
  5. 2.5%
    Gemini 2.5 Flash Preview 05-20
  6. 1.3%
  7. 1.3%
  8. 1.1%
    R1 0528Similar release date
  9. 0.0%
    Magistral SmallSimilar release date

Ahead of 2 of 4 models released around the same time

Humanity's Last Exam

Best score per model · Higher is better

#21 of 34

  1. 20.3%
    o3Similar release date
  2. 19.4%
    GPT-5 MiniNearby rank
  3. 14.2%
    Claude Opus 4.5Nearby rank
  4. 11.0%
    Gemini 2.5 Flash Preview 05-20
  5. 8.6%
  6. 8.3%
    GLM 4.5Nearby rank
  7. 6.7%
    Claude Opus 4Similar release date
  8. 5.7%
    Llama 4 MaverickSimilar release date
  9. 4.5%
    Mistral Medium 3Similar release date

Ahead of 3 of 4 models released around the same time

OTIS Mock AIME 2024-2025

Best score per model · Higher is better

#94 of 158

  1. 71.1%
    Claude Sonnet 4Similar release date
  2. 71.1%
  3. 71.1%
    MiniMax M3Nearby rank
  4. 70.8%
    Gemini 2.5 Flash Preview 05-20
  5. 70.0%
    Qwen3.5-35B-A3BNearby rank
  6. 69.4%
    Seed 1.6Nearby rank
  7. 66.4%
    R1 0528Similar release date
  8. 66.4%
    Qwen3 14BSimilar release date
  9. 32.2%
    Mistral Medium 3Similar release date

Ahead of 3 of 4 models released around the same time

Not evaluated in DeepSWE 1.1 as of 2026-09-22. Results are only shown for exact model versions in the official dataset. Official leaderboard.

All published scores

Benchmark compilation: Epoch AI, Capabilities & benchmarking (CC BY attribution). Scores are converted to percentages and model names matched to the Vertical Tabs catalog. Individual evaluations are credited to their original sources. External results may carry separate licences and evaluation configurations; do not interpret scores from different harnesses as directly comparable.

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