Anthropic bills per token, split into input (your prompt) and output (the model's reply), priced per million tokens. Across the 14 models tracked here, output runs from Claude Haiku 3.5 at $4 per 1M output tokens up to Claude Opus 4.1 at $75. Input is cheaper, and cached input cheaper still. The table below has every model's exact rates, verified June 14, 2026.
| Model | Input / 1M | Output / 1M |
|---|---|---|
| Claude Mythos 5 | $10 | $50 |
| Claude Fable 5 | $10 | $50 |
| Claude Opus 4.8 | $5 | $25 |
| Claude Haiku 4.5 | $1 | $5 |
| Claude Haiku 3.5 | $0.8 | $4 |
| Claude Haiku 3 | $0.5 | $6.25 |
| Claude Sonnet 4.5 | $3 | $15 |
| Claude Sonnet 4.6 | $3 | $15 |
| Claude Sonnet 4 | $3 | $15 |
| Claude Opus 4.5 | $5 | $25 |
| Claude Opus 4.6 | $5 | $25 |
| Claude Opus 4.7 | $5 | $25 |
| Claude Opus 4.1 | $15 | $75 |
| Claude Opus 4 | $15 | $75 |
Per-token billed; output tokens dominate cost (5x input for most models). Cache reads are 10% of input price (0.1x multiplier); 5m cache writes are 1.25x base input, 1h cache writes are 2x base input. Batch API gives 50% discount. Opus 4.7 tokenizer may use up to 35% more tokens vs prior models. Web search costs $10 per 1,000 searches. Session runtime for Managed Agents costs $0.08/session-hour.
Source: platform.claude.com · Catalog 2026-06-14.2. Confirm the live rate before you commit.
The rates above are per unit. Your bill is those rates times how hard your code leans on Anthropic, plus everything around it. PrePrice scans your project, finds where you call Anthropic, and computes your real cost per user and what to charge.
Find your real cost — freeBy output-token price, Claude Haiku 3.5 is currently the cheapest Anthropic model at $4 per 1M output tokens and $0.8 per 1M input. The cheapest model per token is not always the cheapest per finished task, since a weaker model can need more retries or longer prompts.
Anthropic is pay-as-you-go and billed per token: you pay for input tokens (your prompt and context) and output tokens (the response) separately, priced per million tokens. There is no monthly base fee for the API itself.
The per-unit rate is only one of the four numbers that set your bill. The others are how much your app uses Anthropic, how often, and across how many users. Long prompts, retries, multi-step agents, and uncached repeated context all multiply the rate. PrePrice models that usage from your code so the number is real, not a guess.
From Anthropic's official pricing page (platform.claude.com), verified June 14, 2026 and re-checked on a schedule. Pricing changes often, so confirm the live rate before you commit.
See the full AI Cost Index or estimate your monthly bill.