Claude API Articles
4 AI Catchup articles about Claude API, newest first: 4 news stories.
All Claude API Articles
Claude Opens Message Threads in the Messages API Public Beta
Anthropic's public beta for Message Threads lets developers send only new messages to an existing Messages API conversation instead of resending its full history. Threads are held encrypted in memory for five minutes after the last request. The feature does not reduce token usage, and Anthropic reports a median time-to-first-token improvement for long-context Claude Code requests.
Claude API Request Limit: 128 MB for Messages and Token Counting
Anthropic's Claude Platform docs list a 128 MB maximum request size for Messages and Token Counting on the first-party API. Cloud-platform limits are smaller and vary by provider: 20 MB on Bedrock, 30 MB on Google-managed Claude, and up to 32 MB on Anthropic-managed cloud services. Oversized first-party requests return 413 `request_too_large`.
Claude Max, Ultra, and Team Plans Now Include Free Monthly API Credits: $100, $200, or Up to $500
Claude Max, Ultra, and Team plans include monthly Claude API credits at no extra cost: $100 on Max, $200 on Ultra (formerly Max 20x), and up to $500 pooled on Team. You claim them in claude.ai billing settings by linking one Console organization. They cover the API, Managed Agents, and the Agent SDK, not interactive Claude Code.
Anthropic Resumes Billing for Claude Refusals Before Output in Three Safeguard Categories
Anthropic resumed billing for Claude requests refused before any output when its safeguards classify them as biology, frontier LLM development, or reasoning extraction. The charge uses the model's normal rates across platforms. Other pre-output refusals remain unbilled, but still count against rate limits.