Claude: what I’ve logged

Claude comes up in 11 posts of my AI log, from September 2025 to October 2026, and each item below links to the primary source. The sources come from Anthropic, filed under frontier, open weights and image, video, world.

Items that mention Claude

Anthropic 5 Oct 2026
Claude Haiku 5.5
The small Claude is cheaper at $0.10 in and $0.50 out per million tokens under 100K, and gets effort controls and adaptive thinking for the first time.
Primary source
Anthropic 28 Sep 2026
Claude Sonnet 5.5
The second Claude 5.5 model is faster and cheaper than Opus 5.5, at $2 in and $10 out per million tokens, aimed at everyday coding and polished documents.
Primary source
Anthropic 28 Sep 2026
Claude Frontier Academy
A $100 million commitment to train 10,000 Frontier Deployed Engineers by the end of 2027, with firms like Accenture, Bain, Deloitte and McKinsey in the first cohorts.
Primary source
Anthropic 21 Sep 2026
Claude Opus 5.5
The first Claude 5.5 model matches Fable 5.1 on most tasks at $4 in and $20 out per million tokens, with typical workloads about 40% cheaper than Opus 5.
Primary source
Anthropic 21 Sep 2026
Claude discovers a novel enzyme system with CRISPR-like repeats
About 950 Claude agents searched a DNA database for 21 hours and flagged an uncharacterized array-associated reverse transcriptase system that lab work then confirmed.
Primary source
Anthropic 31 Aug 2026
Claude Fable 5.1 and Claude Mythos 5.1
One underlying model at two safeguard levels, with cache reads 75% cheaper and base prices unchanged at $10 in and $50 out per million tokens.
Primary source
Anthropic 20 Jul 2026
Claude Opus 5
Anthropic's new flagship for agentic coding and long-horizon work, with a 1M-token context, 128K output and five effort settings that control how hard it thinks.
Primary source
Anthropic 16 Feb 2026
Claude Sonnet 4.6
The mid-tier Claude gets a major upgrade, bringing near-flagship coding and computer-use skill to the cheaper model.
Primary source
Anthropic 16 Feb 2026
Claude Code Security
A limited preview that scans codebases for vulnerabilities and suggests patches for human review.
Primary source
Anthropic 2 Feb 2026
Claude Opus 4.6
Anthropic's new top model, stronger at long agentic work and offering a 1M-token context window in beta.
Primary source
Anthropic 12 Jan 2026
Claude Cowork (research preview)
Claude Code's agent approach, packaged for non-developers: point it at a folder and it works on the files.
Primary source
Anthropic 13 Oct 2025
Claude Haiku 4.5
A small model that Anthropic says matches Sonnet 4 on coding at about a third of the cost and twice the speed.
Primary source
Anthropic 13 Oct 2025
Equipping agents with Agent Skills
Skills are folders of instructions and scripts that Claude loads only when a task needs them.
Primary source
Anthropic 29 Sep 2025
Claude Sonnet 4.5
Anthropic's new coding and agent model, which it says can hold focus on complex tasks for more than 30 hours.
Primary source
Anthropic 29 Sep 2025
Building agents with the Claude Agent SDK
The Claude Code SDK is renamed and opened up as a general toolkit for building agents.
Primary source
Anthropic 8 Sep 2025
Claude can now create and edit files
Claude produces real Excel, Word, PowerPoint and PDF files inside a sandbox, as a preview feature.
Primary source