Last refreshed 2026-07-26. 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 6 providers to find the best fit for your use caseInput / 1M
$5.00
Output / 1M
$25.00
Cache
Not sourced
Batch
-50% · in $2.50 / out $12.50
Setup recipe
Python + curlInstall
pip install anthropicAuth
export ANTHROPIC_API_KEY=...Call
import anthropic
client = anthropic.Anthropic() # reads ANTHROPIC_API_KEY from env
message = client.messages.create(
model="claude-opus-4-5",Model ID
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
VisionMultimodalReasoningJSON / Tool useStructured OutputsCode Execution
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.
Get Started
Model Specs
Released2025-11-01
Context200k
ArchitectureDecoder Only
Knowledge cutoff2025-12