Cheapest Claude Fable 5.1 API: XCLI is 98% below the official price
Claude Fable 5.1 costs $10/$50 per 1M tokens from Anthropic. The cheapest quote is XCLI: $0.200 in, $1.00 out. Full table and buying checklist below.
| # | Provider | 1M input | 1M output | Discount | Tokens per $100 |
|---|---|---|---|---|---|
| — | Official list | $10.00 | $50.00 | 0% | 6.00M |
| 1 | $0.200 | $1.00 | −98% | 300M | |
| 2 | $0.900 | $4.50 | −91% | 66.7M | |
| 3 | $1.50 | $7.50 | −85% | 40.0M | |
| 4 | $1.50 | $7.50 | −85% | 40.0M | |
| 5 | $1.50 | $7.50 | −85% | 40.0M | |
| 6 | $3.00 | $15.00 | −70% | 20.0M | |
| 7 | $11.59 | $57.95 | — | 5.18M |
Tokens per $100 assume a “code” mix: 5 input tokens per output token. Prices are crawled; verify them on the provider page before buying.
What to check before buying
- Test the key with the free API checker — it verifies the endpoint responds, without sending tokens.
- Compare the blended cost for your workload, not just the input price: output tokens dominate in agent workloads.
- Check uptime and minimum top-up: the cheapest provider is useless if it is down half the day.