Anthropic launches Opus 5
Opus 5 will be both cheaper and less restrictive than Fable, likely making it preferable in most use cases
Anthropic releases Opus 5 with ‘close’ to Fable 5’s capabilities
Weeks after Anthropic's latest toe-to-toe with the US government, and days after an OpenAI security incident that dominated tech industry discussions, Anthropic on Thursday released its…
RT Claude: Introducing Claude Opus 5. It's a thoughtful and proactive model that comes close to the frontier intelligence of Fable 5 at half the price…
RT ClaudeIntroducing Claude Opus 5.It's a thoughtful and proactive model that comes close to the frontier intelligence of Fable 5 at half the price.
Claude Opus 5
Article URL: https://www.anthropic.com/claude-opus-5-system-card Comments URL: https://news.ycombinator.com/item?id=49038433 Points: 6 # Comments: 0
Claude Opus 5
Article URL: https://www.anthropic.com/news/claude-opus-5 Comments URL: https://news.ycombinator.com/item?id=49038393 Points: 56 # Comments: 7
Claude Opus 5 is now available in GitHub Copilot
Claude Opus 5, Anthropic’s newest Opus model, is now available in GitHub Copilot. It is designed for complex, long-running coding tasks that require careful reasoning, effective…
All China Hawks understand that at this point, the entirety of the United States is a leveraged bet on OpenAI's automated intern and Anthropic's equiv…
All China Hawks understand that at this point, the entirety of the United States is a leveraged bet on OpenAI's automated intern and Anthropic's equivalent, in…
Does distilling Claude carry the persona with it?
TL;DRBoth GLM 5.2 and Kimi K3 have been reported identifying as Claude in user conversations, suggesting distillation and/or training-data contamination. To test whether they simply use…
I built an open-source multi-agent SDLC harness that beats a cold Claude Code run on large repos, by learning the repo once. Real benchmarks (incl. where it loses) inside. [P]
Built an open-source AI coding agent that was 7%–75% cheaper than a cold "claude -p" run on 6/6 well-localized tasks across repositories up to ~82k LOC.…
Claude's voice mode now runs on Anthropic's most capable models across all platforms
Voice conversations now run on the more powerful Opus and Sonnet models with access to Gmail, Google Calendar, and Slack. Claude is currently the only AI…
Opus 5
**Anthropic** launched the **Claude Opus 5** model, which sparked mixed reactions including benchmark scrutiny and praise for its coding-agent capabilities. The model achieved an **Epoch Capabilities…
Claude Cookbook
Article URL: https://platform.claude.com/cookbook/ Comments URL: https://news.ycombinator.com/item?id=49031409 Points: 21 # Comments: 2
funnily enough, Chris is a source very trusted by Dario, he's cited in Anthropic's essay on Two Scenarios (total burger victory vs the dreaded bipolar…
funnily enough, Chris is a source very trusted by Dario, he's cited in Anthropic's essay on Two Scenarios (total burger victory vs the dreaded bipolarity). Concerning…umumu:…
Anthropic's J-Lens: A Research Engineer's Analysis
Epistemic status: this is research engineering, not mechanistic interpretability . The compute/cost claims are measured or derived from architecture constants. The quality claims (faithfulness comparisons, spectral…
How the product designer who built Claude Design uses it to explore ideas before building them
How the product designer who built Claude Design uses it to explore ideas before building them
Jul 24, 2026Frontier Red TeamProject Pilot: Can AI control a drone?
Jul 24, 2026Frontier Red TeamProject Pilot: Can AI control a drone?
The new rules of context engineering for Claude 5 generation models
The new rules of context engineering for Claude 5 generation models
Claude models explained: choosing the best model for your use case
Claude models explained: choosing the best model for your use case
Kimi K3 vs Claude Fable 5 on DeepSWE: Cost and Coding
We ran 452 DeepSWE rollouts on Kimi K3 and Claude Fable 5. Fable leads pass@1 by 1.4 points; Kimi K3 wins pass@4 and delivers 2.8x the…
Anthropic updates Claude voice mode with more capable models
Claude's new voice model will let you reschedule your meeting or draft an email
Claude’s voice mode is now available for Opus and Sonnet
Until now, voice mode has only been available on Claude Haiku, Anthropic's faster but less powerful model. Now the company is making its Opus and Sonnet…
Show HN: Claude-thermos – keeps your Claude session warm for you
Article URL: https://github.com/izeigerman/claude-thermos Comments URL: https://news.ycombinator.com/item?id=49024882 Points: 6 # Comments: 2
Writing fingerprint analysis of responses reveals Kimi's similarity to Claude
Article URL: https://typebulb.com/u/lab/you-re-relatively-right/full Comments URL: https://news.ycombinator.com/item?id=49022838 Points: 26 # Comments: 32
Announcing Fugu-Ultra v1.1 and Claude Code interface for Fugu
We’ve been thrilled by the reception to the Fugu model family. Thanks to everyone who tried it, shared feedback, and trusted Fugu with real, complex work.…