#Opus

GPT-5.5 dropped today, just a month and a half after 5.4. Opus 4.7 came out last week, just two months after 4.6. What's even funnier is that GPT finally started talking like a human, while Opus stopped doing so.…

Claude Sonnet 5.5 is a clear upgrade over Claude Sonnet 5, runs 30%+ faster, and costs up to 30% less for most work.

Inside our performance sprint: the benchmarks Claude built, the loop each Slack thread ran, and the guardrails that let us ship 3,000 changes safely.

Claude Opus 5.5 leads in agentic coding and knowledge work, and costs 40% less to run than Opus 5 on typical workloads.

Opus 5 is a step change improvement for the Opus tier powering long-running agents while delivering improvements in coding and professional work.

Hand the cheap model a trajectory, not a plan: /prewalk keeps 92–97% of the frontier pass rate at roughly half the cost, measured on SWE-Bench Pro.

We hold frontier models to a high bar, and for four months nothing beat Claude Opus. GPT-5.6 did. Here's the migration guide we wish we'd had.

My experiencing trying to get a second opinion on my shoulder injury using Claude Code. It's a fascinating glimpse into the future but it's hard to have full confidence in the results just yet.

I have! I care about data privacy and LLMs being free. I'm using the Pi coding harness but containerized and sandboxed, to make sure it's running completely offline.…

Anthropic is an AI safety and research company that's working to build reliable, interpretable, and steerable AI systems.

We added Claude Opus 4.8 to our ongoing model benchmark. It scored 95% with skill context, which puts...

We ran live Crazyrouter API tests on Claude Opus 4.6, 4.7, and 4.8 across reasoning, SQL, long-context extraction, strict JSON, API review, and Chinese support tasks.

Opus 4.8 ships Dynamic Workflows and hundreds of parallel subagents in Claude Code, plus a 3x-cheaper Fast mode. A builder-focused deep-dive for India and the U

Summary Anthropic ran a controlled experiment: Opus 4.5 solo ($9) = 20% success. Add a...

Anthropic released Claude Opus 4.8 just 41 days after 4.7, bringing improved judgment, greater honesty about uncertainties, and dynamic workflows that coordinate hundreds of parallel subagents.…

Anthropic launched Claude Opus 4.8 with new effort controls, dynamic sub-agent workflows and stronger honesty metrics. The release doubles as preparation for Mythos-class models currently limited to defensive cybersecurity partners under Project…

Anthropic raised $65B at a $965B valuation, surpassing OpenAI, while releasing Claude Opus 4.8 with improved coding, agentic capabilities and honesty metrics. Revenue run-rate hit $47B.…

Anthropic has announced that Claude Opus 4.8 has been released with improvements on many benchmarks and token-burn settings.

Anthropic has released its latest AI model with Claude Opus 4.8. The new version arrives less than two months after...

Claude Opus 4.8 improves coding, reasoning, reliability, and agentic workflows while keeping standard API pricing unchanged from Opus 4.7.