AI law firm Crosby has bought malpractice insurance for its agents. The move highlights a nascent coverage gap as major insurers grapple with risks related to artificial intelligence, The New York Times reports.
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Claude Fable 5 tripled average earnings over Opus 4.6 in simulated EVE Online trading. Anthropic says newer Claude models stayed profitable across six-month simulations, while four-agent teams in EVE Frontier coordinated missions but rarely caught a teammate told to undermine them.
Claude can now analyze users’ spending through linked bank and card accounts. Users connect accounts through Plaid and ask questions about their finances, TechCrunch reports.
Anthropic analyzed 207,000 Claude and Claude Code research sessions to study how scientists use AI. Its report finds data analysis is a leading use, while formal fields such as computer science use Claude more relative to their size. A model in the report estimates that automating all non-physical research work could raise output up to 15-fold in computer science and statistics.
Anthropic’s Admin API can now sign Claude Enterprise members out across every device and revoke their organization’s OAuth tokens. The beta endpoint also ends trusted-device access, but members remain in the organization and can sign in again right away.
Anthropic has added beta IP allowlisting for organizations in the Claude Console, with support for up to 1,000 IPv4 or IPv6 addresses and CIDR ranges. Requests to covered services from addresses outside the list are refused, limiting where a leaked API key can be used.
Anthropic has launched Claude Haiku 5.5 with a 1-million-token context window for high-volume, latency-sensitive work. It supports up to 128,000 output tokens and adaptive thinking, and is available through the Claude API, Amazon Bedrock, AWS, Google Cloud and Microsoft Foundry.
Anthropic has launched Claude Sonnet 5.5. It’s available through the Claude API, Amazon Bedrock, AWS, Google Cloud and Microsoft Foundry.
Anthropic has mapped the first 3D structure of a vault particle from a prokaryotic cell, using Claude throughout the research. Claude helped reduce particle purification from three days to about 90 minutes, and a first structural model was ready 34 hours later. The vault’s biological function remains unknown.
Anthropic has released FlashProve, an open-source system that generates cryptographic proofs that a response came from a specific model. On a single H100 GPU, it proves inference for the 400-billion-parameter Llama 4 Maverick at over 100 tokens per second, with a roughly 19 MB proof per 1,024-token request. The release includes code and Lean formal proofs under the Apache 2.0 license.
Anthropic is warning that AI may be close to recursively improving itself. TechCrunch reports the company sees this as a potential point of rapid acceleration in AI capabilities.
Anthropic has added beta message threads to the Messages API, letting follow-up requests send only new messages. Anthropic keeps the conversation on its servers, which can lower time to first token. Threads expire five minutes after the last request and are deleted within an hour of last use. They’re available on the Claude API, AWS, Google Cloud (Anthropic managed) and Microsoft Foundry.
Anthropic is expected to face a high junk credit rating after its IPO, potentially making it harder and more expensive to raise money. TechCrunch reports that the forecast comes from Blackstone; Anthropic hasn't confirmed this.
Anthropic is removing Claude Opus 4.8 fast mode on November 30, 2026, and directs users to migrate to Opus 5.5. After removal, requests to `claude-opus-4-8` with `speed: "fast"` will return an error.
Anthropic has added monthly API credits to its Max, Ultra and Team plans. Subscribers can claim the credits through the plan-specific process.
Anthropic has launched a beta API for tracking Claude Console and Claude Enterprise usage and costs. Organizations can filter and group token and cost data by model, workspace, API key, and the user or service account behind each request.
Anthropic has launched tools to show companies what their spending on AI models buys. The tools shed light on how customers use its models as the company prepares for a planned IPO, TechCrunch reports.
Anthropic has added persistent REPL state and programmatic tool calling to Claude’s code execution tool. The `code_execution_20260120` version is supported by the Python, TypeScript, Go, Java, Ruby, PHP and C# SDKs, with no beta header required. It’s available on Claude Fable 5, Mythos 5, Opus 4.5 and newer, and Sonnet 4.5 and newer.
Anthropic has expanded its AI for Science program with 20 research partners receiving free Claude credits. The partners include the US National Science Foundation, EMBL and the Wellcome Sanger Institute. Funding will support researchers and projects across fields including neuroscience, climate science and genomics.
Amazon is set to make more from Anthropic’s IPO than its venture capital investors. TechCrunch reports that note conversions reveal the extent of Amazon’s ownership in the company.
