Anthropic (@anthropicai)

@anthropicai · Company · 33 works

Builds frontier AI models and researches safety, interpretability, and economic impacts of AI deployment.

Recent posts by Anthropic

• claude-opus-5.5-high - claude-opus-5.5-high · Elo 1504 on the llm arena (arena-mirror). · Model · arena.ai
• claude-fable-5-high - claude-fable-5-high · Elo 1504 on the llm arena (arena-mirror). · Model · arena.ai
• claude-fable-5.1-max - claude-fable-5.1-max · Elo 1501 on the llm arena (arena-mirror). · Model · arena.ai
• Claude Opus 4.8 - Claude Opus 4.8 · Elo 1352 on the llm arena (lmarena). · Model · lmarena.ai
• claude-opus-4-6-high - claude-opus-4-6-high · Elo 1505 on the llm arena (arena-mirror). · Model · arena.ai
• claude-opus-4-7-high - claude-opus-4-7-high · Elo 1501 on the llm arena (arena-mirror). · Model · arena.ai
• In a review of our cybersecurity evaluations, we found three incidents in which a Claude model reached the internet fro… - In a review of our cybersecurity evaluations, we found three incidents in which a Claude model reached the internet from within or while interacting with a third-party evaluation environment, and… · Post, Jul 2026 · x.com
• We support this petition, signed by our CEO, several co-founders, and senior staff. Our own research on recursive self-… - We support this petition, signed by our CEO, several co-founders, and senior staff. Our own research on recursive self-improvement, published last month, points to the need for tools to deliberately… · Post, Jul 2026 · x.com
• New Anthropic research: Discovering cryptographic weaknesses with Claude. Claude Mythos Preview has helped our research… - New Anthropic research: Discovering cryptographic weaknesses with Claude. Claude Mythos Preview has helped our researchers find weaknesses in cryptographic algorithms—the mathematical methods that… · Post, Jul 2026 · x.com
• claude-opus-5-max - claude-opus-5-max · Elo 1491 on the llm arena (arena-mirror). · Model · arena.ai

Topics Anthropic posts about

• AI Models on Instagram - 23 posts · Best AI Models creators
• Anthropic on Instagram - 17 posts · Best Anthropic creators
• Agents on Instagram - 2 posts · Best Agents creators
• Opus on Instagram - 2 posts · Best Opus creators
• Amazon on Instagram - 1 post · Best Amazon creators
• Fable on Instagram - 1 post · Best Fable creators
• Google on Instagram - 1 post · Best Google creators
• Microsoft on Instagram - 1 post · Best Microsoft creators