Claude Fable 5 is a Mythos-class model from Anthropic, built for autonomous knowledge work and coding. It supports text, image, and file inputs with text output, with reasoning support and a 1M-token context window. It is suited for long-running, complex, and asynchronous tasks that previously required frequent human check-ins.
- By:
- Anthropic
- Input:
- Output:
- Context length:
- 1M
- Max output:
- 128K
- Published:
- 2026-06-09
Providers
Same model, different providers. Automatic routing picks the cheapest healthy one within the same quality tier.
| Provider | ||||
|---|---|---|---|---|
| amazon-bedrock | $10/1M tokens | $50/1M tokens | Read$1/1M tokensWrite 5m$12.5/1M tokensWrite 1h$20/1M tokens | 1M |
| 30% offLowestanthropic | $10$7/1M tokens | $50$35/1M tokens | Read$1$0.7/1M tokensWrite 5m$12.5$8.75/1M tokensWrite 1h$20$14/1M tokens | 1M |
Availability
24 hoursSuccess rate of the requests Amux actually sent to each provider. Client errors are excluded from the denominator — a malformed request isn't the provider's fault.
Throughput
24 hoursAverage output speed on streaming requests, in tokens per second (TPS).
Latency
24 hoursAverage time to first token (TTFT) on streaming requests — how long from sending a request to receiving its first token.
Activity
24 hoursToken usage and cost for this model over time, split by the provider that served each request.
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