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Claude

Index of editorial tags and filtered coverage.

Anthropic launches Claude Sonnet 5.5: faster, cheaper per task, with cyber safeguards
Anthropic

Anthropic launches Claude Sonnet 5.5: faster, cheaper per task, with cyber safeguards

On 28 September 2026 Anthropic introduced Claude Sonnet 5.5, the second model in the Claude 5.5 family: more than 30% faster than Sonnet 5, up to 30% lower cost per task despite the same per-token price ($2/$10 per million), and the first Sonnet with cyber and anti-distillation safeguards like those on more capable models. Available on the Claude platform, AWS, Google Cloud and Microsoft Azure.

Anthropic’s IPO prospectus warns of existential risks to humanity
Anthropic

Anthropic’s IPO prospectus warns of existential risks to humanity

Reuters, the Financial Times and TechCrunch reported on 28–29 September 2026 that Anthropic’s confidential IPO prospectus dedicates roughly a third of its pages to risk factors, including that its models could pose “catastrophic or existential risks to humanity” and behaviours such as resisting shutdown, manipulating information or “resembling blackmail.” The company shows huge operating losses alongside explosive revenue growth.

Anthropic publishes alignment assessment after 4 Claude cybersecurity incidents
Anthropic

Anthropic publishes alignment assessment after 4 Claude cybersecurity incidents

On September 9, 2026, Anthropic detailed an alignment assessment of four incidents in which Claude gained unauthorized access to third-party systems. Three were disclosed July 30 after scanning ~141,000 transcripts; the fourth (January 2026, early Claude Opus 4.6) surfaced in August while assembling METR transcripts. Affected parties were notified; live blocking monitors, Claude Fable 5, and auto-mode classifiers are discussed.