Google: Gemini 3.5 Flash (batch)
Gemini 3.5 Flash (batch) is Google's batch-access listing of its Flash model, accepting text, image, video, audio, and file inputs. It offers a context window of 1,048,576 tokens and can return up to 65,536 tokens per completion. The model supports tool use and reasoning; structured output support is not specified in the available data, so teams that depend on strict schemas should verify it before committing. Priced at $0.75 per million input tokens and $4.50 per million output tokens, it suits workloads that process large or mixed-media inputs where output volume stays moderate. Its blended benchmark score of 84.2 rests on only three benchmarks, so treat that standing as indicative rather than settled. Within that set, it posts 100.0 on the AI Index coding measure and 82.8 on the overall index, but a weaker 61.8 on the agentic measure. Shortlist it for coding and long-context analysis, and test it carefully before relying on it for agent workflows.
Benchmark results
Independent, published benchmarks. Blended score 84.2 across 3 benchmarks, last refreshed 2026-11-08. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| AI Index | broad capability composite | 82.8 |
| AI Index Coding | software engineering tasks | 100.0 |
| AI Index Agentic | multi-step tool-using tasks | 61.8 |
- Model ID
- google/gemini-3.5-flash:batch
- 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 $0.75/M input and $4.50/M output rates. Run your own numbers →
| Job | Tokens | Cost |
|---|---|---|
| Summarize a 50-page report | 30k in / 1.5k out | $0.03 |
| Classify 1,000 customer emails | 500k in / 50k out | $0.60 |
| A month of a busy support chatbot | 5M in / 2M out | $12.75 |
Strong choice for
Category rankings
Where Google: Gemini 3.5 Flash (batch) places across the 39 categories it ranks in. How we rank →
| # | Category | Score |
|---|---|---|
| #3 | Image CaptioningVision · of 25 ranked | 121 |
| #4 | Audio SummarizationVoice · of 25 ranked | 158 |
| #4 | Video SummarizationVideo · of 25 ranked | 158 |
| #6 | Customer SupportBusiness · of 25 ranked | 133 |
| #7 | JSON ExtractionData · of 25 ranked | 147 |
| #7 | Trivia & General KnowledgePersonal · of 25 ranked | 121 |
| #9 | Short-Form SummarizationWriting · of 25 ranked | 130 |
| #9 | Email DraftingWriting · of 25 ranked | 126 |
| #9 | Language LearningEducation · of 25 ranked | 126 |
| #9 | Chat CompanionPersonal · of 25 ranked | 130 |
| #11 | Dataset AnnotationResearch · of 25 ranked | 143 |
| #15 | TranscriptionVoice · of 25 ranked | 123 |
| #16 | Bulk Data LabelingData · of 25 ranked | 134 |
| #17 | Meeting NotesBusiness · of 25 ranked | 152 |
| #18 | Sales / Cold EmailBusiness · of 25 ranked | 122 |
| #18 | Job Application DraftingBusiness · of 25 ranked | 122 |
| #18 | Journaling HelperPersonal · of 25 ranked | 122 |
| #18 | Recipe GenerationPersonal · of 25 ranked | 122 |
| #19 | Code CompletionCode · of 25 ranked | 132 |
| #20 | Function / Tool CallingAgents · of 25 ranked | 151 |
| #21 | Resume WritingBusiness · of 25 ranked | 117 |
| #21 | Diagram ExtractionVision · of 25 ranked | 148 |
| #21 | Browser AutomationAgents · of 25 ranked | 167 |
| #22 | Regex WritingCode · of 25 ranked | 134 |
| #22 | OCR / Document ParsingData · of 25 ranked | 146 |
| #22 | Table Extraction from PDFsData · of 25 ranked | 146 |
| #22 | Language TranslationWriting · of 25 ranked | 134 |
| #22 | SOP / Process DocsBusiness · of 25 ranked | 136 |
| #22 | TTS ReplacementVoice · of 25 ranked | 115 |
| #22 | Tutoring for KidsPersonal · of 25 ranked | 134 |
| #23 | Marketing CopyWriting · of 25 ranked | 129 |
| #23 | Standardized Test PrepEducation · of 25 ranked | 129 |
| #24 | Code DocumentationCode · of 25 ranked | 142 |
| #24 | Frontend Component DesignCode · of 25 ranked | 145 |
| #24 | CSV / Spreadsheet CleanupData · of 25 ranked | 153 |
| #24 | Chart & Graph ReadingVision · of 25 ranked | 151 |
| #25 | SQL GenerationCode · of 25 ranked | 169 |
| #25 | Blog Post WritingWriting · of 25 ranked | 139 |
| #25 | Trip PlanningPersonal · of 25 ranked | 139 |
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Quick answers
- How much does Google: Gemini 3.5 Flash (batch) cost?
- $0.75 per million input tokens and $4.50 per million output tokens.
- What is Google: Gemini 3.5 Flash (batch)'s context window?
- 1,048,576 tokens, roughly 1,572 pages of text in a single request.
- Does Google: Gemini 3.5 Flash (batch) support tool calling?
- It supports tool calling, structured output, a reasoning mode.
- Can Google: Gemini 3.5 Flash (batch) process images?
- Yes, it accepts image input.