Google: Gemini 3.5 Flash
Google's Gemini 3.5 Flash accepts text, image, video, audio, and file inputs, which makes it a fit for workloads that mix document parsing with media analysis in a single pipeline. Its context window of 1,048,576 tokens can hold very long inputs such as large codebases or lengthy transcripts, and responses can run up to 65,536 tokens. It supports tool calling and a reasoning mode. The listing does not confirm structured output support, so verify that before relying on it for strict JSON workflows. At $1.50 per million input tokens and $9.00 per million output tokens, the price structure favors input-heavy jobs like summarization or retrieval over long-form generation. Its blended benchmark score of 53.5 rests on a single independent benchmark (an AI Index score of 53.8), so the evidence for its standing is thin. Shortlist it if you need broad multimodal input and a very large context window, but run your own evaluations before committing.
Benchmark results
Independent, published benchmarks. Blended score 53.5 across 1 benchmark, last refreshed 2026-10-13. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| AI Index | broad capability composite | 53.8 |
- Model ID
- google/gemini-3.5-flash
- Vendor
- Released
- May 2026
- Tokenizer
- Gemini
- Input Modalities
- text, image, video, file, audio
- Output Modalities
- text
- Max Output
- 65,536 tokens
- Tool Calling
- ✓ supported
- Structured Output
- ✓ supported
- Reasoning Mode
- ✓ supported
- Vision
- ✓ accepts images
- Audio
- ✓ accepts audio
- Moderated
- no
What it costs in practice
Computed from the current $1.50/M input and $9.00/M output rates. Run your own numbers →
| Job | Tokens | Cost |
|---|---|---|
| Summarize a 50-page report | 30k in / 1.5k out | $0.06 |
| Classify 1,000 customer emails | 500k in / 50k out | $1.20 |
| A month of a busy support chatbot | 5M in / 2M out | $25.50 |
Category rankings
Where Google: Gemini 3.5 Flash places across the 2 categories it ranks in. How we rank →
| # | Category | Score |
|---|---|---|
| #16 | Audio SummarizationVoice · of 25 ranked | 146 |
| #16 | TTS ReplacementVoice · of 25 ranked | 115 |
Similar models
Google: Gemini 3.8 Flash
Google: Gemini 3.8 Flash (batch)
Google: Gemini 3.7 Flash
Google: Gemini 3.7 Flash (batch)
Google: Gemini 3.6 Flash
Google: Gemini 3.6 Flash (batch)
Quick answers
- How much does Google: Gemini 3.5 Flash cost?
- $1.50 per million input tokens and $9.00 per million output tokens.
- What is Google: Gemini 3.5 Flash's context window?
- 1,048,576 tokens, roughly 1,572 pages of text in a single request.
- Does Google: Gemini 3.5 Flash support tool calling?
- It supports tool calling, structured output, a reasoning mode.
- Can Google: Gemini 3.5 Flash process images?
- Yes, it accepts image input.