Google: Gemini 3.8 Flash (batch)
This AI model, Google's Gemini 3.8 Flash (batch), supports multiple input modalities including text, image, video, file, and audio. It can handle context lengths of up to 1 megabyte and is equipped with tools and reasoning capabilities. Those looking for a versatile model with robust benchmarks may want to shortlist the Gemini 3.8 Flash (batch) due to its high blended benchmark score of 93.4 across three independent evaluations. Its pricing, however, may be a significant factor: at $0.375 per million input tokens and $1.875 per million output tokens, it is not the cheapest option available.
Benchmark results
Independent, published benchmarks. Blended score 93.4 across 3 benchmarks, last refreshed 2026-09-04. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| AI Index | broad capability composite | 96.8 |
| AI Index Coding | software engineering tasks | 100.0 |
| AI Index Agentic | multi-step tool-using tasks | 82.5 |
- Model ID
- google/gemini-3.8-flash:batch
- Vendor
- Released
- September 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 $0.38/M input and $1.88/M output rates. Run your own numbers →
| Job | Tokens | Cost |
|---|---|---|
| Summarize a 50-page report | 30k in / 1.5k out | $0.01 |
| Classify 1,000 customer emails | 500k in / 50k out | $0.28 |
| A month of a busy support chatbot | 5M in / 2M out | $5.62 |
Strong choice for
Short-Form Summarization
Email Drafting
Language Learning
Customer Support
Sales / Cold Email
Job Application Drafting
Category rankings
Where Google: Gemini 3.8 Flash (batch) places across the 50 categories it ranks in. How we rank →
| # | Category | Score |
|---|---|---|
| #2 | Image CaptioningVision · of 25 ranked | 121 |
| #3 | Short-Form SummarizationWriting · of 25 ranked | 132 |
| #3 | Email DraftingWriting · of 25 ranked | 128 |
| #3 | Language LearningEducation · of 25 ranked | 128 |
| #3 | TranscriptionVoice · of 25 ranked | 123 |
| #3 | Video Auto-TaggingVideo · of 25 ranked | 123 |
| #3 | Chat CompanionPersonal · of 25 ranked | 132 |
| #3 | Trivia & General KnowledgePersonal · of 25 ranked | 123 |
| #4 | Customer SupportBusiness · of 25 ranked | 135 |
| #4 | TTS ReplacementVoice · of 25 ranked | 115 |
| #5 | Sales / Cold EmailBusiness · of 25 ranked | 124 |
| #5 | Job Application DraftingBusiness · of 25 ranked | 124 |
| #5 | Audio SummarizationVoice · of 25 ranked | 161 |
| #5 | Journaling HelperPersonal · of 25 ranked | 124 |
| #5 | Recipe GenerationPersonal · of 25 ranked | 124 |
| #6 | JSON ExtractionData · of 25 ranked | 149 |
| #6 | Dataset AnnotationResearch · of 25 ranked | 145 |
| #7 | Bulk Data LabelingData · of 25 ranked | 135 |
| #10 | Code CompletionCode · of 25 ranked | 133 |
| #10 | Resume WritingBusiness · of 25 ranked | 119 |
| #10 | Video SummarizationVideo · of 25 ranked | 161 |
| #11 | Regex WritingCode · of 25 ranked | 138 |
| #11 | Language TranslationWriting · of 25 ranked | 138 |
| #11 | Tutoring for KidsPersonal · of 25 ranked | 138 |
| #14 | SOP / Process DocsBusiness · of 25 ranked | 138 |
| #15 | Code DocumentationCode · of 25 ranked | 144 |
| #17 | Marketing CopyWriting · of 25 ranked | 132 |
| #17 | Standardized Test PrepEducation · of 25 ranked | 132 |
| #17 | Meeting NotesBusiness · of 25 ranked | 153 |
| #19 | SQL GenerationCode · of 25 ranked | 173 |
| #19 | CSV / Spreadsheet CleanupData · of 25 ranked | 155 |
| #19 | Blog Post WritingWriting · of 25 ranked | 142 |
| #19 | Browser AutomationAgents · of 25 ranked | 174 |
| #19 | Trip PlanningPersonal · of 25 ranked | 142 |
| #20 | Frontend Component DesignCode · of 25 ranked | 148 |
| #20 | Diagram ExtractionVision · of 25 ranked | 150 |
| #20 | Screenshot DebuggingVision · of 25 ranked | 144 |
| #20 | Chart & Graph ReadingVision · of 25 ranked | 154 |
| #21 | Function / Tool CallingAgents · of 25 ranked | 155 |
| #21 | Fitness CoachingPersonal · of 25 ranked | 136 |
| #22 | OCR / Document ParsingData · of 25 ranked | 147 |
| #22 | Table Extraction from PDFsData · of 25 ranked | 147 |
| #23 | Data AnalysisData · of 25 ranked | 173 |
| #23 | Long-Document SummarizationWriting · of 25 ranked | 162 |
| #23 | Financial AnalysisProfessional · of 25 ranked | 161 |
| #23 | Math TutoringEducation · of 25 ranked | 149 |
| #23 | Character RoleplayPersonal · of 25 ranked | 152 |
| #23 | Experiment DesignResearch · of 25 ranked | 159 |
| #24 | CI/CD PipelinesCode · of 25 ranked | 146 |
| #24 | Physics TutoringEducation · of 25 ranked | 149 |
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Quick answers
- How much does Google: Gemini 3.8 Flash (batch) cost?
- $0.38 per million input tokens and $1.88 per million output tokens.
- What is Google: Gemini 3.8 Flash (batch)'s context window?
- 1,048,576 tokens, roughly 1,572 pages of text in a single request.
- Does Google: Gemini 3.8 Flash (batch) support tool calling?
- It supports tool calling, structured output, a reasoning mode.
- Can Google: Gemini 3.8 Flash (batch) process images?
- Yes, it accepts image input.