Successful inference trendActivity
Flatkey price
Live catalog modelInput /M
$3.2
Input /M
$3.2$4
Output /M
$16$20
claude-opus-5-5 API
Anthropic claude-opus-5-5 for chat and coding; Flatkey routes this model through /v1/messages. $3.2/$16 per 1M tokens
Input /M
Reference price: $4
$3.2-20%
Output /M
Reference price: $20
$16-20%
Provider
Anthropic
claude-opus-5-5 API performance
claude-opus-5-5 API reliability and uptime
Live Flatkey request telemetry for claude-opus-5-5 appears here when enough production traffic is available.
Avg. provider uptime
96.5%
last 30 days
Latency
8.32s
last 30 days
Requests
62.4K
30-day window
Successful inference trend
claude-opus-5-5 API activity
claude-opus-5-5 API usage and request activity
Track request volume and successful inference activity for claude-opus-5-5 over the latest reporting window.
Requests
62.4K
30-day window
Latency
8.32s
last 30 days
Uptime
96.5%
last 30 days
claude-opus-5-5 pricing
claude-opus-5-5 API pricing and billing
Prices below are calculated from Flatkey pricing data for this model and the visible groups currently returned by our pricing API.
View API
Shared balance
Add credits Add credits
Use the same Flatkey balance and API key across image, video, audio, and text models.
Model catalog
- Model Type
- Text
- API
- /v1/chat/completions
- Billing basis
- 1M tokens
claude-opus-5-5 chat and coding: core capabilities
Anthropic's claude-opus-5-5 route supports Not listed in the catalog. The catalog does not list a category for this model.
claude-opus-5-5 chat and coding API
Call claude-opus-5-5 through /v1/messages for chat, coding or agent workflows supported by the model's listed modalities.
claude-opus-5-5 long-context work
claude-opus-5-5 is listed with Context window not listed in the catalog; use that catalog value as an integration planning reference and validate limits for your account.
claude-opus-5-5 tool and agent workflows
Keep tool calls, structured output and streaming behavior aligned with the endpoint contract instead of assuming every provider feature is interchangeable.
claude-opus-5-5 production routing
Use one Flatkey key for claude-opus-5-5, usage controls and model routing while retaining the exact model id in your SDK configuration.
Compare
claude-opus-5-5 API comparison: capabilities and access
Compare the catalog facts for claude-opus-5-5 with the previous-generation baseline before changing your integration.
| Capability | Previous generation | claude-opus-5-5 |
|---|---|---|
| Provider | Not verified in this catalog snapshot | Anthropic |
| Modalities | Not verified in this catalog snapshot | Not listed in the catalog |
| Context | Not verified in this catalog snapshot | Context window not listed in the catalog |
| Endpoint | Not verified in this catalog snapshot | /v1/messages |
| Billing | Not verified in this catalog snapshot | $3.2/$16 per 1M tokens |
Why Flatkey
Why use Flatkey for claude-opus-5-5?
OpenAI-compatible migration path
Chat Completions-style payloads reduce switching friction from existing model stacks.
Production routing
Keep usage, keys, quotas, and model routing in one Flatkey account.
Unified API access
Use one account and API key across image, video, audio, and language models.
Routing across upstream channels
Requests are spread across the channels serving this model, with 30-day uptime published above.
API Gateway
Supported endpoint coverage in our pricing API.
Call this model through the same OpenAI-compatible router and API key as the rest of the Flatkey catalog.
Use your existing SDK and set its base URL to the Flatkey router origin.
Keep prompts and request files in your terminal workflow with the Flatkey CLI.
Use the same key with your coding agent and route model jobs from a script.
curl https://router.flatkey.ai/v1/chat/completions \ -H "Content-Type: application/json" \ -H "Authorization: Bearer sk-***" \ -d '{"model":"claude-opus-5-5","messages":[{"role":"user","content":"Say hello in one sentence."}]}'
FAQ
claude-opus-5-5 API
pricing, features, and usage FAQs
Answers about claude-opus-5-5 pricing, capabilities, endpoint access and catalog limits.
What is claude-opus-5-5 used for?
claude-opus-5-5 is listed by Anthropic for chat and coding; the catalog lists these modalities: Not listed in the catalog.
How is claude-opus-5-5 priced?
Use the pricing section above for current Flatkey prices from our pricing API.
Which API endpoint calls claude-opus-5-5?
Flatkey routes this model through /v1/messages. Set the model field to claude-opus-5-5 and follow the fields supported by that endpoint.
What context or input limits does claude-opus-5-5 have?
claude-opus-5-5 is listed with Context window not listed in the catalog. Other limits depend on the route and current account availability, so verify them before production use.