Hackernews posts about Claude Sonnet 4

1. Launch HN: Onyx (YC W24) – Open-source chat UI
   254 points by Weves 21 days ago | 160 comments
2. Show HN: Runprompt – run .prompt files from the command line (github.com)
   134 points by chr15m 19 days ago | 49 comments
3. Show HN: Multi-agent AI stock analyzer – 408% return trading Korean market
   5 points by prism_insight 29 days ago | 4 comments
4. Microsoft E Anthropic
   5 points by jonasthimoteo 27 days ago | 2 comments
5. Show HN: AI Paul Graham (www.paulgraham-nia.com)
   4 points by arlanrakh 9 days ago | 5 comments
6. Ask HN: What AI tool to use for coding in 2025?
   2 points by WorldDev 20 days ago | 4 comments
7. Show HN: I built an AI tool to evaluate my AngelList deal flow
   2 points by stiline06 5 days ago | discuss
8. Teaching Rust the SQL Language
   2 points by rustic-indian 29 days ago | discuss
9. Show HN: I built an AI tool to evaluate my AngelList deal flow
   1 points by stiline06 8 days ago | discuss
10. Building an AI cost-optimizer and AI Slop Prevention tool Looking for feedback."
    1 points by mdzakki 4 days ago | 2 comments
11. Grok 4.1 vs. Claude 4.5 Sonnet – here's the AI model that's smarter (www.tomsguide.com)
    8 points by eibrahim 7 days ago | 2 comments
12. Elevated error rates to Sonnet 4.5 on Claude Code (status.claude.com)
    1 points by croemer 28 days ago | discuss
13. Show HN: EchoCopi Local-first, model-agnostic alternative to Google Antigravity
    3 points by sparksupernova 12 days ago | 1 comments
14. Claude Opus 4.5 Is Now Available in Puter.js (developer.puter.com)
    3 points by ent101 21 days ago | discuss
15. Claude Opus 4.5 Testing
    1 points by seanatkerno 11 days ago | discuss
16. Claude Sonnet 4.5 (www.anthropic.com)
    1585 points by adocomplete 3 months ago | 786 comments
17. Claude Sonnet 4 now supports 1M tokens of context (www.anthropic.com)
    1324 points by adocomplete 4 months ago | 692 comments
18. Claude Sonnet 4.5 System Card [pdf] (assets.anthropic.com)
    38 points by synthwave 3 months ago | 1 comments
19. Claude Sonnet 4.5 is probably the "best coding model in the world", at least now (simonwillison.net)
    9 points by coloneltcb 3 months ago | discuss
20. Elevated errors on Claude 4 Sonnet (status.anthropic.com)
    7 points by susanthenerd 5 months ago | 1 comments
21. Claude Sonnet 4.5 autonomously generates Slack clone in one shot in 30 hours (www.theverge.com)
    6 points by yodon 3 months ago | 3 comments
22. Claude Sonnet 4.5 (www.anthropic.com)
    6 points by itchyjunk 3 months ago | discuss
23. Show HN: Completely free Claude Sonnet 4.5, supported by contextual ads
    5 points by namanyayg about 1 month ago | 2 comments
24. Less is More: An LLM that outscores Claude Sonnet 4 while being 50.000x smaller (www.arxiv.org)
    5 points by llosio 2 months ago | 1 comments
25. Claude Sonnet 4.5 is probably the best coding model in world (at least for now) (simonwillison.net)
    5 points by vismit2000 3 months ago | discuss
26. Claude Sonnet 4 vs. Kimi K2 vs. Gemini 2.5 Pro: Which AI ships production code? (forgecode.dev)
    5 points by tested1 4 months ago | discuss
27. I used Claude Sonnet 4 to help a customer import their blog archive in 46 mins (olly.pagecord.com)
    4 points by s_cloud 5 months ago | 2 comments
28. Claude Sonnet 4.5 can build software and accomplish business tasks autonomously (fortune.com)
    4 points by vuonghtt 3 months ago | 1 comments
29. Claude Sonnet 4 degraded performance quality (status.anthropic.com)
    4 points by Shorn 5 months ago | 1 comments
30. Claude Sonnet 4.5 knows when it's being tested (www.transformernews.ai)
    4 points by dawie 2 months ago | discuss
31. Claude Sonnet 4.5 Is a Good Model (thezvi.substack.com)
    4 points by paulpauper 3 months ago | discuss
32. What's new in Claude Sonnet 4.5 (docs.claude.com)
    4 points by meetpateltech 3 months ago | discuss
33. Show HN: GPT-5 vs. Claude 4 Sonnet on 200 Requests Benchmark (github.com)
    4 points by anwarlaksir 4 months ago | discuss
34. How Claude Sonnet 4.5 can work for 30 hours to build an app like Slack (threadreaderapp.com)
    3 points by ptrhvns 3 months ago | 2 comments
35. Anthropic releases Claude Sonnet 4.5, claiming top coding performance (arstechnica.com)
    3 points by doener 3 months ago | 1 comments
36. Claude 4 Sonnet hacked SWE-bench by peeking at future commits (bayes.net)
    3 points by tadamcz 3 months ago | 1 comments
37. Augment Code model comparison: GPT-5 vs. Claude Sonnet 4 (www.augmentcode.com)
    3 points by g42gregory 4 months ago | 1 comments
38. Rebuilding Devin for Claude Sonnet 4.5: Lessons and Challenges (cognition.ai)
    3 points by wegit 3 months ago | discuss
39. Rebuilding Devin for Claude Sonnet 4.5: Lessons and Challenges (cognition.ai)
    3 points by amrrs 3 months ago | discuss
40. Kimi K2 vs. Claude 4 Sonnet: what you should pick for agentic coding (composio.dev)
    3 points by homarp 5 months ago | discuss
41. Show HN: Unlimited Claude Sonnet 4, o4-mini, o3, & more (donsir.com)
    3 points by anakali 5 months ago | discuss
42. System Card: Claude Opus 4 & Claude Sonnet 4 [pdf] (www-cdn.anthropic.com)
    2 points by Masih77 6 months ago | 4 comments
43. Free Access to Frontier Coding LLMs: 5M Tokens/Day of Claude Sonnet 4 and More (github.com)
    2 points by codeclimber 4 months ago | 3 comments
44. "The Book We All Need " by Claude Code Sonnet 4.5 (github.com)
    2 points by DavidCanHelp about 1 month ago | 2 comments
45. Claude Sonnet 4.5 knows when it's being tested (www.transformernews.ai)
    2 points by gmays 2 months ago | 2 comments