GET

/v1/models/vercel/vercel-anthropic-claude-fable-5-2-fast

Accept:

provider vercelstatus activefirst seen Nov 9, 2026last seen 10m ago

rawId	anthropic/claude-fable-5.2-fast
displayName	Claude Fable 5.2 (Fast)
id	vercel-anthropic-claude-fable-5-2-fast
activity	chat
schemaEndpointId	chat/completions input · output
releasedAt	1794182400 — Nov 9, 2026
firstSeenAt	1794182400 — Nov 9, 2026
lastSeenAt	1794561555 — 10m ago
pricing	$16 / 1M input · $80 / 1M output → open calculator https://ai-gateway.vercel.sh/v1/models input_tokens (usage) · output_tokens (usage) · cache_read_tokens (usage) · cache_write_tokens (usage)
contextWindow	1000000
maxOutput	128000
modalities	{"input":["text","image","pdf"],"output":["text"]}
capabilities	{"max_tokens":true,"stop":true,"tools":true,"tool_choice":true,"reasoning":true,"include_reasoning":true,"response_format":true,"structured_outputs":true,"temperature":false}
requestMap	{"thinking":{"on":{"reasoning":{"effort":"high"}},"off":null,"levels":{"off":null,"minimal":null,"low":"low","medium":"medium","high":"high","xhigh":"xhigh","max":"max"}},"maxTokensField":"max_tokens","developerRole":null,"replayReasoningContent":null,"store":null,"strictTools":null,"sessionAffinity":null,"cacheControl":null,"toolStream":null,"reasoningEffort":null}
knowledgeCutoff · openWeights · weightsUrl · providerMetadata	not published by this provider’s list endpoint

Endpoints & schemas

GET /v1/schemas/vercel →

endpoint	activity
chat/completions input · output	chat

endpoints matching this model — the provider has more, see /v1/schemas/vercel

Sources

field	recorded source
contextWindow	Source unknown — no source URL recorded. listing
maxOutput	Source unknown — no source URL recorded. listing
modalities	Source unknown — no source URL recorded. listing
pricing	Source linked above. listing pricing Source trace `7620ca28ae37a410704f75ac360ec2ac5dccb0ca5f39d677707ca31848c00aaf`
reasoning	Source unknown — no source URL recorded. listing
capabilities.max_tokens	https://ai-gateway.vercel.sh/v1/models listing supported_parameters.max_tokens Source trace `7620ca28ae37a410704f75ac360ec2ac5dccb0ca5f39d677707ca31848c00aaf`
capabilities.stop	https://ai-gateway.vercel.sh/v1/models listing supported_parameters.stop Source trace `7620ca28ae37a410704f75ac360ec2ac5dccb0ca5f39d677707ca31848c00aaf`
capabilities.tools	https://ai-gateway.vercel.sh/v1/models listing supported_parameters.tools Source trace `7620ca28ae37a410704f75ac360ec2ac5dccb0ca5f39d677707ca31848c00aaf`
capabilities.tool_choice	https://ai-gateway.vercel.sh/v1/models listing supported_parameters.tool_choice Source trace `7620ca28ae37a410704f75ac360ec2ac5dccb0ca5f39d677707ca31848c00aaf`
capabilities.reasoning	https://ai-gateway.vercel.sh/v1/models listing supported_parameters.reasoning Source trace `7620ca28ae37a410704f75ac360ec2ac5dccb0ca5f39d677707ca31848c00aaf`
capabilities.include_reasoning	https://ai-gateway.vercel.sh/v1/models listing supported_parameters.include_reasoning Source trace `7620ca28ae37a410704f75ac360ec2ac5dccb0ca5f39d677707ca31848c00aaf`
capabilities.response_format	https://ai-gateway.vercel.sh/v1/models listing supported_parameters.response_format Source trace `7620ca28ae37a410704f75ac360ec2ac5dccb0ca5f39d677707ca31848c00aaf`
capabilities.structured_outputs	https://ai-gateway.vercel.sh/v1/models listing supported_parameters.structured_outputs Source trace `7620ca28ae37a410704f75ac360ec2ac5dccb0ca5f39d677707ca31848c00aaf`
capabilities.temperature	https://ai-gateway.vercel.sh/v1/models listing unlisted Source trace `7620ca28ae37a410704f75ac360ec2ac5dccb0ca5f39d677707ca31848c00aaf`
activity	Source unknown — no source URL recorded.
requestMap	Source unknown — no source URL recorded.
schemaEndpointId	Source unknown — no source URL recorded.

Use it

shell

$ curl https://modelschemas.com/v1/schemas/vercel/chat/chat/completions # request schema
$ curl -X POST https://modelschemas.com/v1/validate -d '{"provider":"vercel","endpointId":"chat/completions","payload":{…}}'
$ curl -X POST https://modelschemas.com/v1/estimate -d '{"provider":"vercel","model":"anthropic/claude-fable-5.2-fast","usage":{"input_tokens":1200,"output_tokens":400}}'