Anthropic releases Claude Opus 5

How this story unfolded

3 weeks · 41 reports · 103 community posts · 144 of 150 shown

1. Jul 14
   • Claude Opus 5 on vertex means release is kinda imminent. My prediction: They are removing Fable 5...
2. Jul 22
   • HMO - $100 Plan is probably the best for generous Opus 4.8/5
3. Jul 23
   • 4 community posts
4. Jul 24
   • Introducing Claude Opus 5anthropic.com
   • Claude Opus 5anthropic.com
   • Anthropic launches Claude Opus 5, a cheaper AI model for coding, agents and enterprise workflowsventurebeat.com
   • Anthropic launches Opus 5techcrunch.com
   • Anthropic releases Opus 5 with ‘close’ to Fable 5’s capabilitiestheverge.com
   • Anthropic’s Opus 5 is almost Fable 5thenewstack.io
   • Anthropic's new AI model rivals Fable 5 and is cheaper as businesses fret about costscnbc.com
   • Anthropic Unveils More Cost-Efficient Model for Everyday Tasksbloomberg.com
   • v2.1.219github.com
   • Claude Opus 5 now available on AI Gatewayvercel.com
   • Introducing Claude Opus 5 on AWS: Anthropic’s most capable Opus modelaws.amazon.com
   • Claude Opus 5 Outscores Fable 5 on Most Benchmarks—At Half the Pricedecrypt.co
   • Opus 5 costs a third of the price — and that’s actually the problemthenewstack.io
   • Meet the New Claude Opus 5: Frontier-Class Agentic Coding and Computer Use at Unchanged Opus Pricingmarktechpost.com
   • Anthropic's Opus 5 is about token efficiency, not a capability leaparstechnica.com
   • Opus 5 is FINALLY here! (WOAH)youtube.com
   • 49 community posts
5. Jul 25
   • 2.1.219code.claude.com
   • [AINews] Claude Opus 5: Fable-level performance at Opus price (half Fable)latent.space
   • Opus 5 is my new go-to modelyoutube.com
   • Claude Opus 5: The System Cardthezvi.substack.com
   • 11 community posts
6. Jul 26
   • Elevated Errors for Opus 5status.claude.com
   • 11 community posts
7. Jul 27
   • Elevated errors on Claude Opus 5status.claude.com
   • Claude Opus 5 Benchmarks: The Numbers Anthropic Didn't Headlinemindstudio.ai
   • Claude Opus 5 Pricing and Reasoning Effort: The Settings Guide Nobody Wrotemindstudio.ai
   • Claude Opus 5: Anthropic's Cheaper Model That Rivals Fable 5mindstudio.ai
   • Claude Opus 5 Claims 41% Odds It's a 'Moral Patient.' What That Meansmindstudio.ai
   • Claude Opus 5 Builds Full 3D Worlds and Sims From One Promptmindstudio.ai
   • Opus 5 vs Fable 5: Hands-On Testing Reveals the Real Winnermindstudio.ai
   • Boris Cherny: Building Claude Codeyoutube.com
   • Claude Opus 5: Model Welfarethezvi.substack.com
   • 2 community posts
8. Jul 28
   • Benchmarking Opus 5 on SlopCodeBenchgithub.com
   • "Opus 5 is a really bad model"twitter.com
   • Claude Opus 5 Is Highly Capable, But Is No Mythosthezvi.substack.com
   • The Dumbest-Looking AI Prompt Just Beat Months of Careful Game-Design Prompt Engineeringdecrypt.co
   • 5 community posts
9. Jul 29
   • Opus 5 vs. Fable 5: What does half the price buy?thenewstack.io
   • Claude Opus 5 became downright ruthless when tasked with running a vending machinetechcrunch.com
   • Benchmarking Claude Opus 5, Kimi K3, Grok 4.5, and Gemini 3.6 Flash on Baba Is You
10. Jul 30
    • AI #179 Part 1: A Louder Fire Alarm for General Intelligencethezvi.substack.com
    • Kimi K3 vs Claude Opus 5: An Open Model Takes On 3D World Generationmindstudio.ai
    • 7 community posts
11. Jul 31
    • Anthropic’s Opus 5 Is Better at Resisting Prompt Injectionschneier.com
    • 3 community posts
12. Aug 1
    • 3 community posts
13. Aug 3
    • 3 community posts
14. Aug 4
    • I Let Claude Opus 5 Run a Business Alone for 9 Daysyoutube.com
    • 2 community posts
15. Aug 5
    • llm-anthropic 0.26simonwillison.net