claude-fable-5.1

Anthropic claude-fable-5.1 for chat and coding; Flatkey routes this model through /v1/chat/completions. $60 input/$60 output per 1M tokens

Chat and coding
Input /M
Reference price: $75
$60
Output /M
Reference price: $75
$60
Provider
Anthropic

claude-fable-5.1 API performance

claude-fable-5.1 API reliability and uptime

Live Flatkey request telemetry for claude-fable-5.1 appears here when enough production traffic is available.

Avg. provider uptime
94.7%
last 30 days
Latency
5.07s
last 30 days
Requests
266
30-day window
Successful inference trend

claude-fable-5.1 API activity

claude-fable-5.1 API usage and request activity

Track request volume and successful inference activity for claude-fable-5.1 over the latest reporting window.

Requests
266
30-day window
Latency
5.07s
last 30 days
Uptime
94.7%
last 30 days
Successful inference trendActivity

claude-fable-5.1 pricing

claude-fable-5.1 API pricing and billing

$60 input/$60 output per 1M tokens. Rates below come from the live Flatkey catalog; they are not a promise about a provider's direct public price.

Flatkey price

Input tokens

Live catalog model
$60 / 1M tokens

Catalog input rate

Input tokens$60 / 1M tokens
Output tokens$60 / 1M tokens
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
claude-fable-5.1 API pricing and billing
Pricing dimensionFlatkey rateBilling note
Input tokens$60 / 1M tokensCatalog input rate
Output tokens$60 / 1M tokensCatalog output rate

Billing follows the selected claude-fable-5.1 route and account group. Recheck the live estimate before running production volume.

claude-fable-5.1 chat and coding: core capabilities

Anthropic's claude-fable-5.1 route supports Not listed in the catalog. The catalog does not list a category for this model.

claude-fable-5.1 chat and coding API

Call claude-fable-5.1 through /v1/chat/completions for chat, coding or agent workflows supported by the model's listed modalities.

claude-fable-5.1 long-context work

claude-fable-5.1 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-fable-5.1 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-fable-5.1 production routing

Use one Flatkey key for claude-fable-5.1, usage controls and model routing while retaining the exact model id in your SDK configuration.

Compare

claude-fable-5.1 API comparison: capabilities and access

Compare the catalog facts for claude-fable-5.1 with the previous-generation baseline before changing your integration.

CapabilityPrevious generationclaude-fable-5.1
ProviderNot verified in this catalog snapshotAnthropic
ModalitiesNot verified in this catalog snapshotNot listed in the catalog
ContextNot verified in this catalog snapshotContext window not listed in the catalog
EndpointNot verified in this catalog snapshot/v1/chat/completions
BillingNot verified in this catalog snapshot$60 input/$60 output per 1M tokens

Why Flatkey

Why use Flatkey for claude-fable-5.1?

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-fable-5.1",
  "messages": [
    {
      "role": "user",
      "content": "You are a senior backend engineer. In 3 sentences, explain why developers should use an LLM gateway instead of calling each official API directly."
    }
  ]
}'
Docs

FAQ

claude-fable-5.1 API
pricing, features, and usage FAQs

Answers about claude-fable-5.1 pricing, capabilities, endpoint access and catalog limits.

What is claude-fable-5.1 used for?
claude-fable-5.1 is listed by Anthropic for chat and coding; the catalog lists these modalities: Not listed in the catalog.
How is claude-fable-5.1 priced?
claude-fable-5.1 currently shows $60 input/$60 output per 1M tokens. The applicable rate can vary by route, account group and request settings.
Which API endpoint calls claude-fable-5.1?
Flatkey routes this model through /v1/chat/completions. Set the model field to claude-fable-5.1 and follow the fields supported by that endpoint.
What context or input limits does claude-fable-5.1 have?
claude-fable-5.1 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.