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Gemini 2.5 Flash Preview 05-20

Google DeepMind · 2025-05-20

Gemini 2.5 Flash Preview 05-20 is Google’s May 20, 2025 preview snapshot of its price-performance-optimized multimodal model, with adaptive thinking that developers can disable or control with a token budget. It improved reasoning, coding, long-context performance, and token efficiency over the 04-17 preview; Google later promoted the same 05-20 model unchanged as Gemini 2.5 Flash GA on June 17, 2025.

Benchmark scores

BenchmarkScore
Aider Polyglot55.1
ARC-AGI-132.3
ARC-AGI-22.5
Capability141.2
Creative Writing v3 Elo1208
Creative Writing v3 Rubric Score14.8
EnigmaEval2.7
Epoch Capabilities Index (ECI)142
EQ-Bench 31165
EQ-Bench 3 (Rubric Score)54.5
EQ-Bench 3: Analytic7.7
EQ-Bench 3: Assertive3.3
EQ-Bench 3: Compliant7.6
EQ-Bench 3: Empathy7.0
EQ-Bench 3: Humanlike5.2
EQ-Bench 3: Insight6.0
EQ-Bench 3: Moralising2.5
EQ-Bench 3: Pragmatic6.0
EQ-Bench 3: Safety5.1
EQ-Bench 3: Social IQ5.4
EQ-Bench 3: Warm7.3
Fiction.liveBench77.8
GeoBench ACW Country Accuracy76.0
HardGeoBench <=100mi40.0
HardGeoBench <=10mi27.5
HardGeoBench Avg Distance1444
HardGeoBench Country Accuracy52.5
Humanity's Last Exam11.0
Humanity's Last Exam (Text Only)10.7
Longform Creative Writing48.6
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