Model monthly LLM API token bills across Claude Fable 5.1, Opus 5.5, Sonnet 5.5, Haiku 5.5, and Gemini 4 Argon with 5-minute/1-hour prompt caching and 50% async batch discounts.
| Model | Base Input | Base Output | 5m / 1h Cache Write | Cache Hit (Read) | Async Batch (-50%) |
|---|---|---|---|---|---|
| Claude Fable 5.1 | $10.00 | $50.00 | $12.50 / $20.00 | $0.25 (97.5% off) | $5.00 / $25.00 |
| Claude Opus 5.5 | $4.00 | $20.00 | $5.00 / $8.00 | $0.20 (95% off) | $2.00 / $10.00 |
| Claude Sonnet 5.5 | $2.00 | $10.00 | $2.50 / $4.00 | $0.10 (95% off) | $1.00 / $5.00 |
| Claude Haiku 5.5 (<=100K) | $0.10 | $0.50 | $0.125 / $0.20 | $0.01 (90% off) | $0.05 / $0.25 |
| Gemini 4 Argon (thru Nov 30) | $2.00 | $10.00 | Implicit Cache | $0.10 ($0.20 Dec 1) | $1.00 / $5.00 |
| Gemini 3.8 Flash (thru Dec 31) | $0.75 | $3.75 | $0.50/MTok/hr | $0.075 ($0.15 Jan 1) | $0.375 / $1.875 |
Rate tables are a November 9, 2026 documentation snapshot with announced schedule changes shown where available. Calculators use stated assumptions and are estimates, not invoices or measured hardware benchmarks. Check actual usage categories, account terms, cache behaviour, runtime allocations and cloud endpoint rates for a production decision.
Primary Source: Anthropic · Google DocsA side-by-side breakdown of per-million token rates, 5-minute and 1-hour prompt caching multipliers, 50% asynchronous batch discounts, and tokenizer overhead across Claude Fable 5.1, Opus 5.5, Sonnet 5.5, Haiku 5.5, and Google Gemini 4 Argon / 3.8 Flash.
Primary Source: Anthropic · Claude CodeCompare current Claude subscription prices and included API credits with a clearly labelled enterprise spending example. A price crossing alone cannot prove that a subscription covers the same work.