Last refreshed 2026-09-22. Next refresh: weekly.
Why use Claude Opus 5.5 on Anthropic?
Anthropic offers Claude Opus 5.5 with pay-as-you-go pricing at $4.00/1M 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 5.5 across 4 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-5-5",claude-opus-5-5Request example
import anthropic
client = anthropic.Anthropic() # reads ANTHROPIC_API_KEY from env
message = client.messages.create(
model="claude-opus-5-5",
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 5.5 Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Anthropic | $4.00 | $20.00 |
| AWS Bedrock | $4.00 | $20.00 |
| GCP Vertex AI | $4.00 | $20.00 |
| Microsoft Foundry | $4.00 | $20.00 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $4.00 |
| Output tokens | $20.00 |
Capabilities
About Claude Opus 5.5
Anthropic's Claude Opus 5.5, first model in the Claude 5.5 family, released September 22, 2026. First-party positioning: long-running agentic coding and knowledge work; performs at the level of Claude Fable 5.1 on most work; typical workloads about 40% less cost than Opus 5 at default settings (list input/output 20% below Opus 5; cache reads 60% below). Claude API id claude-opus-5-5. List price $4 per 1M input and $20 per 1M output; cache reads $0.20 per 1M tokens (0.05x base input); 5-minute cache writes $5; 1-hour cache writes $8; Batch API 50% off ($2/$10).