Gemini 2.5 Flash vs Gemini 3.5 Flash
Direct spec comparison of Gemini 2.5 Flash (from Google) and Gemini 3.5 Flash (from Google). Want a 3- or 4-way comparison? Open the multi-model tool →
 Gemini 2.5 Flash | Gemini 3.5 Flash | |
|---|---|---|
| Vendor | ||
| Family | Gemini | Gemini |
| Release date | 2025-06-17 | 2026-05-20 |
| Context window | 1,000,000 tokens | — |
| Parameters | — | — |
| Modality | text, vision, audio | text, vision, audio |
| License | proprietary | proprietary |
| Source | proprietary | proprietary |
| Description | Google's cost-and-latency-optimized Gemini 2.5 variant. Generally available June 2025 — designed for high-throughput agentic workflows with sub-second first-token latency. | Fast, low-cost tier of the Gemini 3.5 family announced at Google I/O 2026. June 2026 update added native computer-use capability, moving Flash from generation to agentic task execution. |
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