Claude Opus 4.8 API Pricing Calculator
Compare what your prompts cost across every major LLM — with exact token counts for OpenAI models, right in your browser.
Prices verified 2026-07-24 · per 1M tokens · sources linked per provider
Input / 1M tokens
$5
Cached input / 1M
$0.5
Output / 1M tokens
$25
claude-opus-4-8At Claude Opus 4.8's rates ($5 per 1M input tokens, $25 per 1M output), a call with 1,000 input and 500 output tokens costs $0.0175. At 10,000 requests a month, that workload runs $175.00. A heavier call — a 100,000-token prompt returning 2,000 tokens — costs $0.55.
Within Anthropic Claude's lineup, Claude Opus 4.8 runs 5.0× the per-call cost of Claude Haiku 4.5 and 2.0× less than Claude Fable 5 at this workload. It is priced identically to Claude Opus 5 ($5 in / $25 out per 1M tokens) — for this calculator the two differ only in the model itself, not the bill.
Cache-read input is billed at $0.5 per 1M tokens — 90% below the standard input rate, so a long system prompt reused across calls mostly bills at the discounted rate.
Claude Opus 4.8's context window is 1,000,000 tokens.
| Model | Cost / call | Cost / month | × best price |
|---|---|---|---|
| Claude Haiku 4.5cheapest | $0.006 | $6.00 | — |
| Claude Sonnet 5 | $0.012 | $12.00 | 2.0× |
| Claude Opus 5 | $0.03 | $30.00 | 5.0× |
| Claude Opus 4.8 | $0.03 | $30.00 | 5.0× |
| Claude Fable 5 | $0.06 | $60.00 | 10.0× |
More Anthropic Claude models: Claude Opus 5 · Claude Sonnet 5 · Claude Haiku 4.5 · Claude Fable 5 — or all Anthropic Claude pricing
Token counter
Token counts are exact for OpenAI models (tiktoken o200k_base, run in your browser). For other providers the count is an estimate — notably Claude Opus 4.7+/Sonnet 5 and similar newer models use a tokenizer that produces roughly 30% more tokens for the same text.
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