Anthropic model
Claude Opus 4.1 API cost calculator
Claude Opus 4.1 costs $15 per 1M input tokens and $75 per 1M output tokens on the Anthropic API, with a 200K-token context window. A typical request (2K input, 500 output tokens) costs $0.07 — about $2,025/month at 1,000 requests per day. Use the calculator below to model your exact workload.
Find me a cheaper modelWhat real workloads cost on Claude Opus 4.1
| Workload | Tokens (in / out) | Per request | Per 1K requests |
|---|---|---|---|
| Chatbot message | 500 / 300 | $0.03 | $30.00 |
| RAG query with context | 4,000 / 500 | $0.10 | $97.50 |
| Document summarization | 20,000 / 1,000 | $0.38 | $375 |
| Agent coding session | 100,000 / 5,000 | $1.88 | $1,875 |
Claude Opus 4.1 vs other Anthropic models
| Model | Input /1M | Output /1M | Context |
|---|---|---|---|
| Claude Opus 4.1 | $15 | $75 | 200K |
| Claude Opus 5 (Fast) | $10 | $50 | 1M |
| Claude Opus 5 | $5 | $25 | 1M |
| Claude Sonnet 5 | $2 | $10 | 1M |
| Claude Fable 5 | $10 | $50 | 1M |
Frequently asked questions
How much does Claude Opus 4.1 cost per 1M tokens?
According to current pricing data, Claude Opus 4.1 costs $15 per 1M input tokens and $75 per 1M output tokens. Processing 1M tokens each way costs $90.00.
What does a typical API request to Claude Opus 4.1 cost?
A typical request with 2,000 input tokens and 500 output tokens costs $0.07. At 1,000 requests per day that is $67.50 daily, or about $2,025 per month.
What is Claude Opus 4.1's context window?
Claude Opus 4.1 supports a 200K-token context window (200,000 tokens).
Does Claude Opus 4.1 support prompt caching?
Yes. Cached input tokens cost $1.50 per 1M — a 90% discount versus the standard input rate, which matters for agents and chat apps that resend the same system prompt.
What is a cheaper alternative to Claude Opus 4.1?
Ling-2.6-flash from Inclusionai is currently the cheapest comparable option at $0.01 per 1M input tokens versus $15 for Claude Opus 4.1 — roughly 1500x cheaper on input.
Prices may differ from Anthropic's official pricing page for batch, tiered, or fine-tuned usage. Compare all current prices on the live model pricing dashboard, see Claude Opus 4.1 vs Ling-2.6-flash pricing, or run Claude Opus 4.1 head-to-head against other models in the side-by-side comparison playground.
Pricing data via the OpenRouter models API.