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Gemini 2.5 Flash (May 2025)

ECI#105
142
Google DeepMind
May 20, 2025
Closed weights

Gemini 2.5 Flash (May 2025) is a closed-weights model from Google DeepMind, released May 20, 2025. It has an ECI score of 142 and ranks 105th of 253 tracked models. At the time of its release, it ranked 6th of 137 tracked models.

Gemini 2.5 Flash (May 2025) vs select alternatives

DomainBenchmark
Gemini 2.5 Flash (May 2025)
Google DeepMind
May 20, 2025
Closed weights
Gemini 2.5 Flash (Apr 2025)
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Gemini 2.5 Pro (May 2025)
Google DeepMind
May 6, 2025
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Claude Sonnet 4
Anthropic
May 22, 2025
Closed weights
ECI scoreBest score 167
142140142142
Ranking#105#113#99#104
Conceptual reasoning
ARC-AGI-2Best score 95%
3%
n/a
n/a
6%
ARC-AGI-1Best score 99%
33%
32%
n/a
40%
Long context
Fiction.liveBenchBest score 97%
78%
47%
67%
47%
Mathematics
OTIS Mock AIME 2024-2025Best score 100%
71%
73%
n/a
71%
Multimodal
EnigmaEvalBest score 39%
3%
n/a
2%
3%
GeoBenchBest score 88%
76%
73%
86%
37%
Science
Humanity's Last ExamBest score 55%
11%
12%
18%
8%
Software engineering
Aider PolyglotBest score 88%
55%
47%
77%
61%
WeirdML (v2)Best score 94%
41%
41%
n/a
46%

Model metadata

General
OrganizationGoogle DeepMind
Release dateMay 20, 2025
Model accessibilityClosed weights
CountryUnited States of America
Knowledge cutoff2025-01-01
Provider notesOur powerful and most efficient workhorse model designed for speed and low-cost.
Pricing
Input price$0.15 / 1M tokens
Output price$0.60 / 1M tokens
Training
ParametersUnknown
Training computeUnknown
Training hardwareUnknown
Training timeUnknown
Training dataset sizeUnknown