Google: Gemini 3.5 Flash
The Google Gemini 3.5 Flash is a versatile AI model that can handle various input modalities, including text, image, video, file, and audio. It also supports context lengths of up to 1MB and provides tools for reasoning. For users who need an all-in-one solution with flexibility in input types, the Google Gemini 3.5 Flash is worth considering. Its price point of $1.5 per million input tokens and $9.0 per million output tokens may be a concern, but its blended benchmark score of 83.8 across three independent benchmarks suggests it can deliver strong performance at scale. However, users who prioritize structured output or are on a tight budget should explore other options before shortlisting this model.
Benchmark results
Independent, published benchmarks. Blended score 83.8 across 3 benchmarks, last refreshed 2026-09-04. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| AI Index | broad capability composite | 85.7 |
| AI Index Coding | software engineering tasks | 100.0 |
| AI Index Agentic | multi-step tool-using tasks | 65.5 |
- 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 3 categories it ranks in. How we rank →
| # | Category | Score |
|---|---|---|
| #12 | Audio SummarizationVoice · of 25 ranked | 158 |
| #18 | TTS ReplacementVoice · of 25 ranked | 115 |
| #18 | Video SummarizationVideo · of 25 ranked | 158 |
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.