Anthropic: Claude Fable 5 (batch)
Claude Fable 5 from Anthropic is a powerful AI with a context length of 1 million tokens and supports text, image, and file inputs. It can handle complex reasoning tasks and integrates tools for enhanced functionality, making it versatile across various applications. This model stands out for its robust benchmark scores in agentic and coding tasks, achieving perfect marks in the ai_index benchmarks. With a blended score of 98.8 across four independent evaluations, it's a top contender. Its pricing at $5.0 per million input tokens and $25.0 per million output tokens makes it competitive for projects requiring high performance but with a focus on cost-effectiveness.
Benchmark results
Independent, published benchmarks. Blended score 98.8 across 4 benchmarks, last refreshed 2026-08-13. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| AI Index | broad capability composite | 100.0 |
| AI Index Coding | software engineering tasks | 100.0 |
| AI Index Agentic | multi-step tool-using tasks | 93.4 |
| EQ-Bench | emotional understanding in dialogue | 82.6 |
- Model ID
- anthropic/claude-fable-5:batch
- Vendor
- anthropic
- Released
- June 2026
- Tokenizer
- Claude
- Input Modalities
- text, image, file
- Output Modalities
- text
- Max Output
- 128,000 tokens
- Tool Calling
- ✓ supported
- Structured Output
- ✓ supported
- Reasoning Mode
- ✓ supported
- Vision
- ✓ accepts images
- Audio
- no
- Moderated
- yes
What it costs in practice
Computed from the current $5.00/M input and $25.00/M output rates. Run your own numbers →
| Job | Tokens | Cost |
|---|---|---|
| Summarize a 50-page report | 30k in / 1.5k out | $0.19 |
| Classify 1,000 customer emails | 500k in / 50k out | $3.75 |
| A month of a busy support chatbot | 5M in / 2M out | $75.00 |
Category rankings
Where Anthropic: Claude Fable 5 (batch) places across the 43 categories it ranks in. How we rank →
| # | Category | Score |
|---|---|---|
| #6 | Agent WorkflowsAgents · of 25 ranked | 204 |
| #6 | Coding AgentsAgents · of 25 ranked | 204 |
| #7 | Bug FixingCode · of 25 ranked | 191 |
| #7 | Scientific CodingResearch · of 25 ranked | 191 |
| #9 | Code ReviewCode · of 25 ranked | 176 |
| #9 | Code RefactoringCode · of 25 ranked | 173 |
| #9 | Creative WritingWriting · of 25 ranked | 166 |
| #9 | Screenwriting & DialogWriting · of 25 ranked | 166 |
| #9 | Academic WritingWriting · of 25 ranked | 166 |
| #9 | Legal DraftingProfessional · of 25 ranked | 166 |
| #9 | Legal ResearchProfessional · of 25 ranked | 178 |
| #9 | Contract ReviewProfessional · of 25 ranked | 188 |
| #9 | Scientific ResearchProfessional · of 25 ranked | 178 |
| #9 | Physics TutoringEducation · of 25 ranked | 153 |
| #9 | Essay GradingEducation · of 25 ranked | 176 |
| #9 | RFP ResponseBusiness · of 25 ranked | 183 |
| #9 | OKRs & Strategic PlanningBusiness · of 25 ranked | 166 |
| #9 | RAG PipelinesAgents · of 25 ranked | 173 |
| #9 | Long-Context Q&AAgents · of 25 ranked | 163 |
| #9 | Fiction CollaboratorPersonal · of 25 ranked | 178 |
| #9 | Math ProofsResearch · of 25 ranked | 166 |
| #9 | Literature ReviewResearch · of 25 ranked | 178 |
| #10 | Financial AnalysisProfessional · of 25 ranked | 163 |
| #11 | Unit Test GenerationCode · of 25 ranked | 158 |
| #11 | Data AnalysisData · of 25 ranked | 176 |
| #11 | ETL ScriptingData · of 25 ranked | 160 |
| #11 | Medical Note SummarizationProfessional · of 25 ranked | 160 |
| #11 | History TutoringEducation · of 25 ranked | 150 |
| #12 | CI/CD PipelinesCode · of 25 ranked | 148 |
| #12 | Long-Document SummarizationWriting · of 25 ranked | 166 |
| #12 | Math TutoringEducation · of 25 ranked | 151 |
| #12 | Browser AutomationAgents · of 25 ranked | 175 |
| #12 | Experiment DesignResearch · of 25 ranked | 161 |
| #13 | Character RoleplayPersonal · of 25 ranked | 153 |
| #16 | SQL GenerationCode · of 25 ranked | 173 |
| #17 | Frontend Component DesignCode · of 25 ranked | 147 |
| #17 | Screenshot DebuggingVision · of 25 ranked | 143 |
| #17 | Chart & Graph ReadingVision · of 25 ranked | 153 |
| #19 | Meeting NotesBusiness · of 25 ranked | 152 |
| #23 | Blog Post WritingWriting · of 25 ranked | 141 |
| #23 | Trip PlanningPersonal · of 25 ranked | 141 |
| #25 | Function / Tool CallingAgents · of 25 ranked | 152 |
| #25 | Fitness CoachingPersonal · of 25 ranked | 135 |
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Quick answers
- How much does Anthropic: Claude Fable 5 (batch) cost?
- $5.00 per million input tokens and $25.00 per million output tokens.
- What is Anthropic: Claude Fable 5 (batch)'s context window?
- 1,000,000 tokens, roughly 1,500 pages of text in a single request.
- Does Anthropic: Claude Fable 5 (batch) support tool calling?
- It supports tool calling, structured output, a reasoning mode.
- Can Anthropic: Claude Fable 5 (batch) process images?
- Yes, it accepts image input.