Last refreshed 2026-05-19. Next refresh: weekly.
Why use Claude Opus 4.5 on Anthropic?
Anthropic offers Claude Opus 4.5 with pay-as-you-go pricing at $5.00/1M input tokens. Anthropic is a safety-focused AI research company and creator of the Claude model family, offering API access through the Anthropic Console for text generation, analysis, and coding tasks.
Compare Claude Opus 4.5 across 5 providers to find the best fit for your use caseSetup recipe
Python + curlpip install anthropicexport ANTHROPIC_API_KEY=...import anthropic
client = anthropic.Anthropic() # reads ANTHROPIC_API_KEY from env
message = client.messages.create(
model="claude-opus-4-5",claude-opus-4-5Request example
import anthropic
client = anthropic.Anthropic() # reads ANTHROPIC_API_KEY from env
message = client.messages.create(
model="claude-opus-4-5",
max_tokens=1024,
messages=[{"role": "user", "content": "Hello"}]
)
print(message.content[0].text)Gotchas
- Use the versioned model ID, e.g. "claude-sonnet-4-6" or "claude-opus-4-7-20251101".
- The examples expect ANTHROPIC_API_KEY; rename it only if your application config maps the new variable.
Compare Claude Opus 4.5 Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Microsoft Foundry | $5.00 | $25.00 |
| Anthropic | $5.00 | $25.00 |
| GCP Vertex AI | $5.00 | $25.00 |
| AWS Bedrock | $18.00 | $90.00 |
| OpenRouter | $5.00 | $25.00 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $5.00 |
| Output tokens | $25.00 |
Capabilities
About Claude Opus 4.5
Claude Opus 4.5 is Anthropic's Claude 4.5 model with multimodal text and image input and an optional reasoning mode. It offers a 200K-token context window and scores 80.7 on MMMU.
FAQ
What does Claude Opus 4.5 cost on Anthropic?
On Anthropic, Claude Opus 4.5 costs $5 per 1M input tokens and $25 per 1M output tokens.
What is the context window for Claude Opus 4.5 on Anthropic?
Claude Opus 4.5 supports a 200,000 token context window on Anthropic.
How does Anthropic compare to other Claude Opus 4.5 providers?
Claude Opus 4.5 is available from 5 providers. The cheapest input pricing is $5/1M tokens from Microsoft Foundry.
Who created Claude Opus 4.5?
Claude Opus 4.5 was created by Anthropic as part of the Claude 4.5 model family.
Is Claude Opus 4.5 open source?
Claude Opus 4.5's open source status is unknown in the seed data.