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Claude Opus 5 Fast

Tools
anthropic/claude-opus-5-fast

1M context · Jul 2026 · 3 upstreams

Fast-mode variant of Claude Opus 5 with the same capabilities and a 1,000,000-token context window, tuned for higher output speed.

Bring your own keyAnyRouter has no platform route for Claude Opus 5 Fast. Requests use your key and bill your provider account. AnyRouter adds no fee.
context
1M
input / 1M (list)
$10.00
output / 1M (list)
$50.00
routes
3
speed, 24h
—

Upstreams

3
  1. 1OpenRouterYour key · not addedyour planTPS —TTFT ——
  2. 2Vercel AI GatewayYour key · not addedyour planTPS —TTFT ——
  3. 3Venice AIYour key · not addedyour planTPS —TTFT ——
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Try it

Send a prompt

Details

Owner
Anthropic
Kind
Vision
Released
Jul 2026
Context
1M
Data policy
Provider retention
Endpoint
/api/v1/chat/completions

Quick start

curl https://anyrouter.dev/api/v1/chat/completions \
  -H "Authorization: Bearer $ANYROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "anthropic/claude-opus-5-fast",
  "messages": [
    {
      "role": "user",
      "content": "Say hi in 3 words."
    }
  ]
}'