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Gemini 3.8 Flash

ECI#20
159
Google DeepMind
Sep. 2, 2026
Closed weights

Gemini 3.8 Flash is a closed-weights model from Google DeepMind, released September 2, 2026. It has an ECI score of 159 and ranks 20th of 237 tracked models. At the time of its release, it ranked 10th of 220 tracked models.

Gemini 3.8 Flash vs select alternatives

DomainBenchmark
Gemini 3.8 Flash
Google DeepMind
Sep. 2, 2026
Closed weights
Google DeepMind
Aug. 13, 2026
Closed weights
Moonshot
Jul. 16, 2026
Open weights
Meta AI
Sep. 2, 2026
Closed weights
ECI scoreBest score 169
159158159158
Ranking#20#22#21#23
Games
Chess PuzzlesBest score 76%
58%
66%
37%
37%
Mystery Game PuzzlesBest score 84%
47%
37%
26%
25%
Mathematics
FrontierMath ErdősBest score 4%
0%
n/a
0%
n/a
68%
72%
72%
74%
FrontierMath Tier 4 (v2)Best score 100%
22%
37%
39%
46%
OTIS Mock AIME 2024-2025Best score 100%
99%
97%
97%
99%
Multimodal
32%
27%
34%
n/a
Science
GPQA DiamondBest score 96%
95%
95%
93%
n/a
World knowledge
SimpleQA VerifiedBest score 76%
70%
69%
51%
n/a

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