Model comparison
Gemini 3.5 Flash vs Gemini 3 Flash
- Input
- $1.50 / 1M tokens
- Output
- $9.00 / 1M tokens
- Context
- 1M
- Released
- 2026-05-19
- Input
- $0.50 / 1M tokens
- Output
- $3.00 / 1M tokens
- Context
- 1M
- Released
- 2025-12-17
Gemini 3.5 Flash scores higher on 2 of the 2 benchmarks both models report; Gemini 3 Flash is cheaper on input tokens ($0.5 vs $1.5 per 1M, 3×).
Specs and pricing side by side
| Spec | Gemini 3.5 Flash | Gemini 3 Flash |
|---|---|---|
| Maker | Googlesame | |
| Released | 2026-05-19 | 2025-12-17 |
| Context window | 1M | 1Msame |
| Max output | 64K | 64Ksame |
| Input price | $1.50 / 1M tokens | $0.50 / 1M tokens |
| Output price | $9.00 / 1M tokens | $3.00 / 1M tokens |
| Parameters | Not disclosed | Not disclosedsame |
| License | Proprietary | Proprietarysame |
| Weights | API only | API onlysame |
| Modalities | Text, Vision, Audio, Video, PDF | Text, Vision, Audio, Video, PDFsame |
| Knowledge cutoff | January 2025 | January 2025same |
Benchmarks both models report
| Benchmark | Gemini 3.5 Flash | Gemini 3 Flash |
|---|---|---|
| MCP Atlas | 83.6% | 57.4% |
| MMMU-Pro | 83.6% | 81.2% |
Scores are as published by each maker or its cited source; harness, reasoning effort and date can differ between rows, so treat small gaps as ties. Sources are listed on each model page.
Which one should you pick?
Pick Gemini 3.5 Flash if…
- You care about MCP Atlas, MMMU-Pro (it scores higher on 2 shared benchmarks).
- Your use case is: coding agents and autonomous multi-step software tasks (e.g. terminal and SWE-style workflows).
Pick Gemini 3 Flash if…
- Cost matters: input tokens cost 3× less ($0.5 vs $1.5 per 1M).
- Your use case is: high-volume production features where Gemini 3 Pro would be too slow or expensive.
FAQ
Which is better, Gemini 3.5 Flash or Gemini 3 Flash?
Gemini 3.5 Flash scores higher on 2 of the 2 benchmarks both models report; Gemini 3 Flash is cheaper on input tokens ($0.5 vs $1.5 per 1M, 3×). The better pick depends on whether you value benchmark scores, price per token, context length or openness for your workload.
How much cheaper is Gemini 3 Flash?
Gemini 3.5 Flash: $1.50 / 1M tokens input, $9.00 / 1M tokens output. Gemini 3 Flash: $0.50 / 1M tokens input, $3.00 / 1M tokens output (list API prices as published by each maker).
What are the context windows of Gemini 3.5 Flash and Gemini 3 Flash?
Gemini 3.5 Flash offers 1M with up to 64K output; Gemini 3 Flash offers 1M with up to 64K output.
Is Gemini 3.5 Flash newer than Gemini 3 Flash?
Gemini 3.5 Flash was released 2026-05-19; Gemini 3 Flash was released 2025-12-17.
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