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Anthropic: Claude Opus 4.5 API Pricing
Claude Opus 4.5 is Anthropic’s frontier reasoning model optimized for complex software engineering, agentic workflows, and long-horizon computer use. It offers strong multimodal capabilities, competitive performance across real-world coding and...
How much does Anthropic: Claude Opus 4.5 cost for a real workload?
At 10M input + 2M output tokens per month, Anthropic: Claude Opus 4.5 costs about $100 ($50 input + $50 output). Try your own volumes in the cost calculator.
What is the official Anthropic: Claude Opus 4.5 price?
| Official (anthropic) | Catalog (OpenRouter) | |
|---|---|---|
| Input /1M | $5 | $5 |
| Output /1M | $25 | $25 |
| Cached input /1M | $0.5 | $0.5 |
✓ Matches the official list price. Source: anthropic official pricing page, checked 2026-10-21.
What are cheaper alternatives to Anthropic: Claude Opus 4.5?
- Meta: Muse Wonder — $4 in / $20 out per 1M
- Anthropic: Claude Opus 5.5 — $4 in / $20 out per 1M
- OpenAI: GPT-5.6 Sol Pro — $4 in / $20 out per 1M
- OpenAI: GPT-5.6 Sol — $4 in / $20 out per 1M
- Anthropic: Claude Opus Latest — $4 in / $20 out per 1M
- OpenAI: GPT-5.4 Image 2 — $8 in / $15 out per 1M
Where to run Anthropic: Claude Opus 4.5
AI/ML API: one API key for 400+ models, including most models tracked here · Novita AI: pay-as-you-go APIs for open models (DeepSeek, Qwen, Llama and more) plus GPU cloud. Prices there follow each platform's own catalog and can differ from the list prices tracked here.
Run it on AI/ML API →Run it on Novita AI →
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Compare Anthropic: Claude Opus 4.5 with other models
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Frequently asked questions
How much does Anthropic: Claude Opus 4.5 cost?
Anthropic: Claude Opus 4.5 costs $5 per 1M input tokens and $25 per 1M output tokens (list price, snapshot October 22, 2026). At 10M input + 2M output tokens per month that is about $100.
What is the context window of Anthropic: Claude Opus 4.5?
Anthropic: Claude Opus 4.5 has a context window of 200,000 tokens and can return up to 64,000 output tokens per response.
What are cheaper alternatives to Anthropic: Claude Opus 4.5?
Cheaper models include Meta: Muse Wonder ($4 in / $20 out), Anthropic: Claude Opus 5.5 ($4 in / $20 out), OpenAI: GPT-5.6 Sol Pro ($4 in / $20 out). See the full list on this page.
Is Anthropic: Claude Opus 4.5 free to use?
No. Anthropic: Claude Opus 4.5 is a paid model at $5 input / $25 output per 1M tokens. 21 free models are listed on the free models page.
What is the official price of Anthropic: Claude Opus 4.5?
On anthropic's official pricing page (checked 2026-10-21), Anthropic: Claude Opus 4.5 is listed at $5 per 1M input tokens and $25 per 1M output tokens. The catalog price tracked on this page matches it exactly.
Provider: anthropic · Model ID: anthropic/claude-opus-4.5 · Modality: text+image+file->text · Price snapshot October 22, 2026, refreshed daily. How we collect prices