Claude Fable 5.1 vs Claude Haiku 5.5
Claude Fable 5.1 (Anthropic) versus Claude Haiku 5.5 (Anthropic): API pricing, context window, capabilities and uptime, from the same data as each model page, at the WandAPI default channel price. Input costs 6 Credits / M for Claude Fable 5.1 and 0.21 Credits / M for Claude Haiku 5.5, so Claude Haiku 5.5 is 97% cheaper.
Specs side by side
| Item | Claude Fable 5.1claude-fable-5-1 | Claude Haiku 5.5claude-haiku-5-5 |
|---|---|---|
| Input (prompt) · Credits / M | 6≈ $0.917 | 0.21≈ $0.0321 |
| Output (completion) · Credits / M | 30≈ $4.58 | 1.05≈ $0.16 |
| Cache read · Credits / M | 0.15 | 0.021 |
| Context window | 1M | — |
| Max output | 128K | — |
| 7-day uptime | — | — |
| Latest probe latency | — | — |
| Measured throughput | — | — |
| Protocols | Anthropic Messages | Anthropic Messages |
| Sample monthly cost (10M in + 2M out) | 120≈ $18.34 | 4.2≈ $0.642 |
Prices are the WandAPI default channel price in Credits (1 Credit = ¥1); green marks the better side. Uptime and latency come from WandAPI probes; a dash means the model is not probed yet.
Capabilities
FAQ
Which is cheaper, Claude Fable 5.1 or Claude Haiku 5.5?
At the WandAPI default channel price, Claude Fable 5.1 input costs 6 Credits / M and Claude Haiku 5.5 input costs 0.21 Credits / M, so Claude Haiku 5.5 is 97% cheaper. Output and cache prices are in the specs table above.
Can I switch between Claude Fable 5.1 and Claude Haiku 5.5 at any time?
Yes. WandAPI calls every model with the same API key; switching is just changing the model field in the request, and billing is split per model in one console.
How do the capabilities of Claude Fable 5.1 and Claude Haiku 5.5 differ?
Only Claude Fable 5.1: Reasoning, Web Search. Every other capability is either supported by both or by neither; see the capability table above.
More comparisons
One API key for both Claude Fable 5.1 and Claude Haiku 5.5
Free credits on sign-up, pay as you go, no monthly fee.