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Catalog/Write text/Claude Opus 5.5 Fast
TEXT → TEXT · Anthropic

Claude Opus 5.5 Fast

Claude Opus 5.5 Fast serves the same Opus 5.5 model with faster output generation, a 1M token context window, up to 128K output tokens, adaptive thinking, vision, and tool calling.
High censorship
PRICE0.06 creditsper 1k tokens
AVG TIME~20sestimate
OUTPUTtextsync
Open in playground

Inputs

promptrequired · text
textoptional · Context — artifact id or https URL
imageoptional · Image — artifact id or https URL
Monthly estimate
1,000 × 0.06 credits60.00 credits
curl https://platform.4i.app/api/v1/run \
  -H "Authorization: Bearer $FOURI_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "service": "anthropic/claude-opus-5-5-fast",
    "input": {
      "prompt": "Ask for some text, or about an attached image…"
    }
  }'
Every output has an artifact_id. Pass it as input to any compatible service.
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