Google · API-only (closed weights)

Gemini 2.5 Flash (Apr 2025)

Gemini 2.5 Flash (Apr 2025) is an API-only (closed weights) language model from Google, released April 17, 2025. On the Epoch Capabilities Index it scores 140.8, rank 122 of 256 rated models.

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Lab

Google

Released

April 17, 2025

Weights

API-only (closed weights)

Parameters

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Context

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Price / M tokens

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Epoch ECI

140.8 #122

Benchmark results

Benchmark (Epoch AI)	Score
OTIS Mock AIME	73.0%
Aider Polyglot	47.1%
Humanity's Last Exam	12.1%

Links

Epoch AI benchmarks

Models with a similar score

DeepSeek-V3.2-Exp · Grok 4 Fast · Gemma 4 31B IT · Qwen 3.6 35B-A3B · Qwen3.5-35B-A3B · Gemini 2.5 Pro (Mar 2025) · Qwen 3.5 Flash (hosted 35B-A3B) · Qwen 3.6 Flash

More from Google

Gemini 4 Carbon · Gemini 4 Argon · Gemini 3.8 Flash · Gemini 3.7 Flash · Gemini 3.6 Flash · Gemini 3.5 Flash-Lite · Gemini 3.5 Flash Cyber · Gemma 4 E4B