Anthropic: Claude Fable 5
Claude Fable 5 by Anthropic is an AI model capable of processing text, images, and files, with a substantial context length of up to one million tokens and robust support for reasoning and tools. Its ability to generate structured output makes it versatile for complex tasks. This model should be considered for projects requiring high-context understanding and multi-modal input handling; its blended benchmark score of 99.2 across four independent benchmarks places it among the top performers. However, given the price points of $10.0 per million input tokens and $50.0 per million output tokens, this may not be the most economical choice for all budgets, despite its strong performance standing.
Benchmark results
Independent, published benchmarks. Blended score 99.2 across 4 benchmarks, last refreshed 2026-07-25. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| AI Index | broad capability composite | 98.8 |
| AI Index Coding | software engineering tasks | 100.0 |
| AI Index Agentic | multi-step tool-using tasks | 87.1 |
| EQ-Bench | emotional understanding in dialogue | 82.6 |
- Model ID
- anthropic/claude-fable-5
- 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 $10.00/M input and $50.00/M output rates. Run your own numbers →
| Job | Tokens | Cost |
|---|---|---|
| Summarize a 50-page report | 30k in / 1.5k out | $0.38 |
| Classify 1,000 customer emails | 500k in / 50k out | $7.50 |
| A month of a busy support chatbot | 5M in / 2M out | $150.00 |
Category rankings
Where Anthropic: Claude Fable 5 places across the 30 categories it ranks in. How we rank →
| # | Category | Score |
|---|---|---|
| #11 | Bug FixingCode · of 25 ranked | 180 |
| #11 | Agent WorkflowsAgents · of 25 ranked | 192 |
| #11 | Coding AgentsAgents · of 25 ranked | 192 |
| #11 | Scientific CodingResearch · of 25 ranked | 180 |
| #12 | Legal ResearchProfessional · of 25 ranked | 168 |
| #12 | Contract ReviewProfessional · of 25 ranked | 177 |
| #12 | Scientific ResearchProfessional · of 25 ranked | 168 |
| #12 | Fiction CollaboratorPersonal · of 25 ranked | 168 |
| #12 | Literature ReviewResearch · of 25 ranked | 168 |
| #15 | RFP ResponseBusiness · of 25 ranked | 172 |
| #15 | Browser AutomationAgents · of 25 ranked | 164 |
| #16 | Code ReviewCode · of 25 ranked | 165 |
| #16 | Creative WritingWriting · of 25 ranked | 155 |
| #16 | Screenwriting & DialogWriting · of 25 ranked | 155 |
| #16 | Academic WritingWriting · of 25 ranked | 155 |
| #16 | Legal DraftingProfessional · of 25 ranked | 155 |
| #16 | Essay GradingEducation · of 25 ranked | 165 |
| #16 | OKRs & Strategic PlanningBusiness · of 25 ranked | 155 |
| #16 | Math ProofsResearch · of 25 ranked | 155 |
| #17 | Code RefactoringCode · of 25 ranked | 162 |
| #17 | Data AnalysisData · of 25 ranked | 164 |
| #17 | RAG PipelinesAgents · of 25 ranked | 162 |
| #19 | ETL ScriptingData · of 25 ranked | 150 |
| #19 | Medical Note SummarizationProfessional · of 25 ranked | 150 |
| #19 | Long-Context Q&AAgents · of 25 ranked | 152 |
| #20 | Financial AnalysisProfessional · of 25 ranked | 152 |
| #20 | Physics TutoringEducation · of 25 ranked | 143 |
| #21 | History TutoringEducation · of 25 ranked | 140 |
| #22 | Experiment DesignResearch · of 25 ranked | 150 |
| #25 | Math TutoringEducation · of 25 ranked | 140 |
Similar models
Claude Opus 5 (Fast)
Anthropic: Claude Opus 4.8 (Fast)
Anthropic: Claude Opus 4.7 (Fast)
Anthropic: Claude Opus 4.1
Anthropic: Claude Opus 4
Anthropic: Claude 3 Haiku
Quick answers
- How much does Anthropic: Claude Fable 5 cost?
- $10.00 per million input tokens and $50.00 per million output tokens.
- What is Anthropic: Claude Fable 5's context window?
- 1,000,000 tokens, roughly 1,500 pages of text in a single request.
- Does Anthropic: Claude Fable 5 support tool calling?
- It supports tool calling, structured output, a reasoning mode.
- Can Anthropic: Claude Fable 5 process images?
- Yes, it accepts image input.