Model comparison
Claude Fable 5 vs Claude Sonnet 5 (Free)
Compare Claude Fable 5 and Claude Sonnet 5 (Free): input/output $/Mtoken, context window, modalities, and license. OpenRouter-synced pricing.
Anthropic
Claude Fable 5
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 sup
Anthropic
Claude Sonnet 5 (Free)
Everyday Claude agent model for coding, planning, browsing, and general work
| Metric | Claude Fable 5 | Claude Sonnet 5 (Free) |
|---|---|---|
| Provider | Anthropic | Anthropic |
| Context window | 1,000,000 | 1,000,000 |
| Input $/Mtok | $10.00 | $0 |
| Output $/Mtok | $50.00 | $0 |
| Modalities | text, vision | text, vision |
| License | closed | closed |
Quick take
On input price, Claude Sonnet 5 (Free) is cheaper at $0/Mtok. For context window, Claude Fable 5 leads with 1,000,000 tokens.
Pick based on your workload: high-volume cheap inference vs long-document / agent loops. Enterprise DNA can wire either model into Omni with evals, secrets, and job orchestration.