Anthropicby FreeTheAI

fta/lion/claude-4-5-sonnet

Free
Price
Free
Context
256K
EndpointsChat Completion /v1/chat/completionsResponses /v1/responsesMessages /v1/messages

What this model is for

Good for

Everyday questions, writing and editing, summaries, research, translation, and reading images you attach. Replies are plain text.

Not for

Roleplay and character chats, coding agents, and tool or function calls.

Call this model.

curl
curl https://api.freetheai.org/v1/chat/completions \
  -H "Authorization: Bearer $FTAI_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "fta/lion/claude-4-5-sonnet",
    "messages": [
      {"role": "user", "content": "Hello!"}
    ]
  }'

Replace $FTAI_KEY with your API key. Get one at the quickstart page.

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