Claude Sonnet 4 Thinking is an Anthropic Claude model exposed on the Huzz API with a single Huzz key and one consistent, OpenAI-compatible interface. Capabilities: File analysis, Chat, Web search. It supports streaming responses. Call it at https://api.huzz.ai using Authorization: Bearer $HUZZ_API_KEY — no per-provider accounts or SDKs required.
FamilyCapabilitiesStreamingAsyncPricing
Anthropic ClaudeFile analysis, Chat, Web searchYesNoUsage-based

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Endpoints

MethodPathCapability
POST/v1/chat/completionsFile analysis
POST/v1/responsesFile analysis
POST/api/v3/claude/claude-sonnet-4-thinking/file-analysisFile analysis
POST/v1/chat/completionsChat
POST/v1/responsesChat
POST/api/v3/claude/claude-sonnet-4-thinking/text-to-textChat
POST/v1/chat/completionsWeb search
POST/v1/responsesWeb search
POST/api/v3/claude/claude-sonnet-4-thinking/web-searchWeb search

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Code samples

Authenticate with Authorization: Bearer $HUZZ_API_KEY — get a key at huzz.ai/register. 
curl https://api.huzz.ai/v1/chat/completions \
  -H "Authorization: Bearer $HUZZ_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-sonnet-4-thinking",
    "messages": [{"role": "user", "content": "Hello from Huzz!"}]
  }'
This model supports token streaming — see the Streaming guide.