Comparison
Claude Fable 5 vs Claude Sonnet 5
Claude Sonnet 5 costs 80% less per input token than Claude Fable 5. On generated (output) tokens, Claude Fable 5 costs 80% more than Claude Sonnet 5.
| Field | Claude Fable 5 | Claude Sonnet 5 |
|---|---|---|
| Provider | Anthropic | Anthropic |
| Context window | 1M | 1M |
| Max output | 128K | 128K |
| Input / 1M | $10.00 | $2.0080% cheaper |
| Output / 1M | $50.00 | $10.0080% cheaper |
| Cached input / 1M | $1.00 | $0.2080% cheaper |
| Batch discount | 50% | 50% |
| Release date | 2026-06-09 | — |
Worked cost examples
Estimated monthly cost on three common usage shapes
| Workload | Claude Fable 5 | Claude Sonnet 5 |
|---|---|---|
Chatbot 800 input / 200 output tokens per request, 100,000 requests/month | $1,800 | $360.00cheaper |
RAG pipeline 6,000 input / 700 output tokens per request, 30,000 requests/month | $2,850 | $570.00cheaper |
Batch summarization 20,000 input / 1,500 output tokens per request, 5,000 requests/month | $1,375 | $275.00cheaper |
Claude Fable 5 vs Claude Sonnet 5 FAQ
- Is Claude Fable 5 cheaper than Claude Sonnet 5?
- Claude Fable 5 costs $10.00 per 1M input tokens versus $2.00 for Claude Sonnet 5 — Claude Sonnet 5 is 400% cheaper per input token.
- Which is cheaper for output tokens, Claude Fable 5 or Claude Sonnet 5?
- Claude Fable 5 charges $50.00 per 1M output tokens; Claude Sonnet 5 charges $10.00 per 1M output tokens.
- Which has the larger context window, Claude Fable 5 or Claude Sonnet 5?
- Claude Fable 5 does, with a 1,000,000-token context window.
- Do Claude Fable 5 and Claude Sonnet 5 offer cache pricing?
- Claude Fable 5 discounts cached input to $1.00 per 1M tokens. Claude Sonnet 5 discounts cached input to $0.20 per 1M tokens.
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