Anthropic introduced Claude Sonnet 5.5 at unchanged mid-tier rates of $2 per million input tokens and $10 per million output tokens. The model exceeded Opus 5.5 on Terminal-Bench 4.0 yet consumed more tokens at peak effort settings.
Benchmark results place Sonnet 5.5 ahead of Opus 5.5 on Terminal-Bench 4.0.
Speed gains exceed 30 percent relative to Sonnet 5.
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Claude Meetings is rolling out in a beta on Team and Enterprise plans. It joins a Google Meet call as a visible participant, takes notes, and can build docs and whiteboards during the call.
Anthropic released Claude Haiku 5.5, its cheapest and fastest small model, at $0.10 per million input tokens and $0.50 per million output tokens for prompts up to 100,000 tokens. Anthropic says it costs around 75% less to run than Haiku 4.5 on average and scores far higher on its benchmarks.
Anthropic's Claude service is down worldwide due to authentication system failures affecting multiple products. More than 1,500 reports appeared on Downdetector within minutes on September 29.
Anthropic says early estimates show its new anti-distillation defenses cut the data distillers harvest from Claude by about 90-99%. It has banned tens of thousands of accounts, but says it doesn't know how long the gains will last.
Anthropic says self-hosted Claude Managed Agents is in private beta. The harness, sandboxes, credentials, and session history can run in a customer's own cloud or on-premise. Model requests can go to Anthropic, a cloud provider, or the customer's own gateway.
