FRONTIER REASONING200K CONTEXTTEXT + VISIONPROMPT CACHINGBATCH -50%
Claude Opus 4.5 API Pricing
Claude Opus 4.5 launched on November 24, 2025 at $5/M input and $25/M output, with cache reads at $0.50/M - a third of the $15/$75 that earlier Opus models charged, and unchanged since. Anthropic has shipped five Opus releases after it; it remains on the price list with a 200K-token window. Checked by hand against platform.claude.com.
Input · per 1M tokens
$5.00/M
A third of Opus 4.1 = launch
Output · per 1M tokens
$25.00/M
Unchanged since launch = launch
Cached input · 90% off
$0.50/M
Cache 5min or 1h −90%
Effective · agentic blend
$3.41/M
92/8 split · 82% cache
§ 01 / TERMINAL
Run the numbers.
Live calculator pre-loaded with current Claude Opus 4.5 rates. Tweak amount or workload split — share the URL to share the calculation.
$ /mo
Workload split
Prompt cache hit rate
Tokens you can process
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Words equivalent (English)
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Effective rate
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§ 02 / SCENARIOS
Real-world presets.
CHATBOT
Personal AI assistant
$0.006/turn
CODING AGENT
Solo dev pair-programming
$0.140/task
LONG DOC ANALYSIS
Reading 100-page contracts
$0.620/doc
RAG · SUPPORT
Customer support RAG
$0.008/ticket
Estimate · anthropic-bpe-estimate · ≈3.5 chars/token Auto-counts as you type
This is a chars-per-token approximation, not a real tokenizer. Actual tokens vary by language, code density, and tool-call overhead — counts are typically ±10–20% off for English prose, more for code or non-Latin scripts. For exact billing, use the vendor's official tokenizer.
Characters 436
Words 78
Tokens (estimated) 125 tokens
Cost as input · uncached $0.00063 USD
Cost as output · uncached $0.00313 USD
Cost as cached input $0.00006 USD
| Model | Input /M | Output /M | Effective blended | Context | Best for |
|---|---|---|---|---|---|
| Claude Opus 4.5 Current | $5.00 cache $0.50 | $25.00 | $3.41 agentic 92/8 | 200K | Frontier coding · long-form writing |
| Claude Opus 4.7 | $5.00 cache $0.50 | $25.00 | $3.41 same | 1M | Newest Opus · 1M context |
| Claude Opus 4.6 | $5.00 cache $0.50 | $25.00 | $3.41 same | 1M | Opus generation peer |
| Claude Sonnet 4.6 | $3.00 cache $0.30 | $15.00 | $2.05 −40% | 1M | Daily-driver agents · coding |
| Claude Sonnet 5.5 | $2.00 cache $0.10 | $10.00 | $1.29 −2.6× | 1M | Newest Sonnet · production agents |
| Claude Haiku 4.5 | $1.00 cache $0.10 | $5.00 | $0.682 −5.0× | 200K | Support · classification |
| Claude Opus 4.1 | $15.00 cache $1.50 | $75.00 | $10.24 retired | 200K | Legacy Opus pricing — being phased out |
Frequently asked.
Practical pricing questions, with the live vendor numbers separated from workload assumptions.
Q · 01 Is Claude Opus 4.5 still Anthropic's top Opus? +
No. Anthropic has released Opus 4.6, 4.7, 4.8, 5 and 5.5 since, and Opus 5.5 now lists below it at
$4.00/M input and $20.00/M output. Opus 4.5 stays on the price list at $5/M and $25/M; with an 82% cache hit rate and a 92/8 input-output workload its effective blended cost is $3.41/M.Q · 02 Was Opus 4.5 ever priced at $15/$75? +
No. Anthropic launched Opus 4.5 on November 24, 2025 at
$5/M input and $25/M output - its announcement reads "Pricing is now $5/$25 per million tokens" - a third of the $15/$75 that Opus 4.1 and earlier Opus models charged. This page previously said it launched at $15/$75 and was cut later; that was wrong, and the correction is logged on our corrections page.Q · 03 How does prompt caching work? +
Mark sections of your prompt (system message, examples, retrieved context) as cacheable. Anthropic stores them server-side for either 5 minutes or 1 hour. Subsequent requests that include the cached section get billed at
$0.50/M instead of $5/M — a 90% discount. Writing to cache costs 1.25× base for the 5-minute TTL ($6.25/M) and 2× for the 1-hour TTL ($10/M). For long-running agentic workloads with stable system prompts, hit rates of 80–90% are typical.Q · 04 Is there a Batch API discount? +
Yes. Anthropic's Batch API gives a flat 50% discount on both input and output tokens: for Opus 4.5 that is
$2.50/M input and $12.50/M output, against the standard $5/M and $25/M.Q · 05 Are there geo-routing or regional surcharges? +
On the first-party Claude API, Opus 4.5 runs on global routing at the prices on this page. Anthropic's 1.1x US-only inference multiplier (
inference_geo: "us") applies to Claude 4.6 and later models, not to Opus 4.5. On Amazon Bedrock and Google Cloud, regional and multi-region endpoints carry a 10% premium over global endpoints for Claude 4.5 models and later, Opus 4.5 included.Q · 06 How accurate is your tokenizer? +
The live counter is an estimate: it divides English text by a fixed characters-per-token ratio for Claude-class BPE tokenization, it does not run Anthropic's tokenizer. Use it for planning; billing uses Anthropic's server-side count, which you can get exactly from the API's token-counting endpoint. Code, tables and non-Latin scripts can differ materially from the estimate.
Q · 07 Are volume discounts published? +
No. Anthropic's pricing page publishes no volume ladder - the published discounts are the Batch API (50%) and prompt caching. Negotiated discounts, such as AWS private offers, are applied through your account team.