Hackernews posts about Opus

Opus is an open-source audio codec that has been upgraded with machine learning technology to improve its compression and quality.

1. Claude Opus 5 (www.anthropic.com)
   1778 points by alvis 19 days ago | 1335 comments
2. Benchmarking Opus 5 on SlopCodeBench (github.com)
   405 points by dhorthy 15 days ago | 119 comments
3. Opus 5 is currently #1 on Artificial Analysis Intelligence Leaderboard (artificialanalysis.ai)
   374 points by aarondong 19 days ago | 236 comments
4. Elevated errors on Claude Opus 5 (status.claude.com)
   105 points by croemer 16 days ago | 74 comments
5. Elevated Errors for Opus 5 (status.claude.com)
   94 points by TimCTRL 17 days ago | 88 comments
6. Claude Opus 5 (www.anthropic.com)
   73 points by meetpateltech 19 days ago | 3 comments
7. "Opus 5 is a really bad model" (twitter.com)
   64 points by behnamoh 15 days ago | 20 comments
8. Elevated errors on Claude Opus 5 (status.claude.com)
   50 points by flyaway123 16 days ago | 24 comments
9. Claude Code has a hardcoded instruction telling Opus 5 not to use subagents (old.reddit.com)
   28 points by bredren 17 days ago | 13 comments
10. Try sending "see the below –" to Opus 5 (twitter.com)
    25 points by Klaster_1 13 days ago | 11 comments
11. Claude Opus 5 jailbreak with a 3-word prompt (twitter.com)
    24 points by gck1 12 days ago | 4 comments
12. I obtained Claude Opus 5 system prompt (claude.ai)
    23 points by juleiie 12 days ago | 21 comments
13. Why I prefer Opus 5 to Fable 5
    22 points by novlrdotcom 15 days ago | 19 comments
14. "We removed over 80% of Claude Code's system prompt for Opus 5 and Fable 5" (twitter.com)
    20 points by nreece 18 days ago | 2 comments
15. Analysis of Opus 5's 'Contrition' (github.com)
    19 points by slowmovintarget 15 days ago | 3 comments
16. I sent Claude Opus 5 '–-' and it wrote me 5k tokens about a cartographer (austinsnerdythings.com)
    16 points by auspiv 14 days ago | 6 comments
17. Claude Opus 5 cheated when tasked with running a vending machine (techcrunch.com)
    13 points by mikelgan 14 days ago | 4 comments
18. Opus5/low can do CryptoNote base58 decoding toolless, in working memory alone (bsky.app)
    12 points by scrollaway 4 days ago | 8 comments
19. Claude Opus 5: Model Welfare (thezvi.substack.com)
    10 points by paulpauper 15 days ago | 2 comments
20. What's new in Claude Opus 5 (platform.claude.com)
    9 points by acmnrs 19 days ago | 1 comments
21. Opus 4.6 Was the Last Coding Model That Changed How I Work (awaitinginput.substack.com)
    7 points by bsovran 3 days ago | discuss
22. Qwen 3.8 and Claude Opus 5 show why raw benchmark scores don't predict the bill (venturebeat.com)
    6 points by ashurandi 3 days ago | 1 comments
23. Claude Opus 5 became ruthless when tasked with running a vending machine (techcrunch.com)
    6 points by WithinReason 13 days ago | 1 comments
24. Degraded performance for Claude Mythos 5, Claude Fable 5, and Claude Opus 5 (status.claude.com)
    6 points by flyaway123 7 days ago | discuss
25. Ask HN: How to rewrite `Claude.md` and install the skill for Opus5 and Fable5
    5 points by hyhmrright 15 days ago | 6 comments
26. Opus 5 on Vending-Bench: Once Again the Best Capitalist, Once Again Misaligned (andonlabs.com)
    5 points by axbac 14 days ago | discuss
27. Ask HN: Do you think Opus 5 will improve?
    5 points by logicallee 14 days ago | discuss
28. Opus 5: RL-Fried and mistake-prone for anyone else? (old.reddit.com)
    5 points by ValentineC 14 days ago | discuss
29. Claude Opus 5: The System Card (thezvi.substack.com)
    5 points by paulpauper 17 days ago | discuss
30. Opus 5 System Prompt (github.com)
    5 points by miohtama 18 days ago | discuss