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English reports linked to this entity will appear here as their translations are published.
Anthropic refused to drop two restrictions - on large-scale domestic surveillance and fully autonomous weapons - causing its contract talks with the U.S. Department of War to break down publicly.
A Sonnet 4.6 update that raises baseline reasoning performance while keeping response speed.
A late-cycle refinement of Opus, with targeted fine-tuning for a set of long-tail specialized tasks.
Anthropic extends Claude Code's execution model to non-coding work, letting Claude plan tasks and produce professional deliverables inside authorized folders.
A half-step 4.5 upgrade to Opus that strengthens deep reasoning while maintaining long-form generation quality.
Anthropic released Claude Sonnet 4.5 with gains in coding, complex agents, computer use, reasoning, and math.
Anthropic releases Claude Opus 4.1, an incremental closed-model update tuned for complex mathematics and long reasoning chains.
Alongside the Claude 4 launch, Anthropic moved Claude Code out of research preview to general availability across terminal, IDE, background tasks, and SDK.
Anthropic's fourth-generation top-tier flagship, raising the ceiling on multimodal understanding and logical tasks.
The mid-size member of the Claude 4 family, striking a better balance between response speed and reasoning.
Anthropic releases an upgrade that can switch between standard responses and extended reasoning mode.
Claude 3.5 Sonnet improves reasoning, coding and vision, and introduces Artifacts.
Anthropic releases the Claude 3 family with Haiku, Sonnet and Opus variants and image understanding.
Anthropic released Claude 2.1 with a 200,000-token context window, system prompts, and tool use in beta.
Anthropic releases Claude 2 with native support for context windows of up to 100,000 tokens and improved coding capability.
Anthropic releases Claude 1, trained with Constitutional AI to emphasize safe and harmless outputs.
