Top all-time · #14723
Dirac
Company blog · dirac.run/posts · on HN as GodelNumberingaiprogramming
Dirac is the company blog at dirac.run, writing about ai and programming. Since 2026, 5 different Hacker News readers have linked it 21 times, most often “Cache hit rates of Inference are more meaningful than the headline costs”. No feed was found, so read it on the site itself.
Too few sampled comments (3) to say how often HN recommends it.?
Why HN links it
HN commenters discuss Dirac, a coding agent harness, mainly its opt-out telemetry endpoint, and list it among other agent harnesses. None of the comments judge the site's writing.
Summarised by Claude from a sample of 3 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
Dirac is an efficiency-focused open-source coding agent built for complex, real-world codebases.
Most-linked posts?
- /3 people · 4 mentions · first linked 2026-04-30
- Cache hit rates of Inference are more meaningful than the headline costs2 people · 3 mentions · first linked 2026-05-23
What Hacker News says?
Mimo has been one of those models that I have been rooting for since the first I used it, the 2.5 pro which I have used quite a bit, was very concise, very aware of how much context needs to be read for which tasks and would always keep the context tight. Also surprisingly good at strategic thinking. I had published a comparison between it and Terra where Terra was found to be using much more avg context for similar…
Comment linking /posts/gpt-5-6-vs-mimo-2-5-pro-context-bloat-comparison
on “MiMo v2.6”Submitted Show HN: I finetuned 1.5B Qwen to near GPT-4o level bash generation perf as a story · 6 points
HN discussionDirac ( https://github.com/dirac-run/dirac , https://dirac.run/ ) now supports gpt-5.6. This thing does now seem to be on the chatGPT/codex accounts yet.
Comment linking /
on “GPT-5.6”Submitted OSS models decisively overtook Proprietary models in openrouter market share as a story · 4 points
HN discussionSome months ago I was evaluating command output compressors to integrate into Dirac[1] as that seemed like an easy win that would compliment and compound with Dirac's other mechanisms. I tested rtk among these and it was actually a net negative in both CPU time and accuracy, the latter would throw LLMs way off and make it hard to recover. If you are building a coding agent, I'd hard pass on rtk. ~ $ time grep Return…
Comment linking /
on “RTK reports token savings, but our cost benchmarks disagree”Submitted From 'I want my own harness' to corporate sponsorship as a story · 3 points
HN discussionI was a Mistral Le Chat Pro subscriber (the €20/month plan). Yesterday I hit my monthly limit. Switching to PAYG I burned through another €40 in one evening, working on the same project, with the same tasks. I upgraded my plan last night to Mistral Le Chat Teams. This now costs me €60 per month for two users. Limits have been reset, but I have no idea now if my per seat limit is higher than the Pro plan, or if the l…
Comment linking /
on “Microsoft Drops Claude Code After Budget Overrun”Submitted Token Arbitrage: Use Sol for coding, Luna for compaction, save 84% as a story · 3 points
HN discussionAnother neat thing is, they publish hourly caching states for ALL model/provider combinations. I did some research on it to come up with a provider tiers list and found a bunch of open-source 3rd party hosts are simply trash tier https://dirac.run/posts/cache-hit-rates-agents
Comment linking /posts/cache-hit-rates-agents
on “OpenRouter raises $113M Series B”Submitted Cache hit rates of Inference are more meaningful than the headline costs as a story · 3 points
HN discussionExactly 4 months ago, the marketshare on openrouter was 60%-40% in favor of closed models. Now it's 63%-37% in favor of open models. On March 19th, the open labs processed 888B tokens in aggregate, yesterday, they processed 4.19T tokens in aggregate. That's almost 5x in 4 months! I can't think of the right intensifier to describe this level of growth. If you are looking for more details (as inferred by openrouter da…
Comment linking /labs-market-share
on “Mozilla: The state of open source AI”Submitted 'AI has inner experience' is a dangerous assumption as a story · 2 points
HN discussionI had a chance to look at this and noticed you were sending telemetry to an endpoint you control: https://dirac.run/v1/event . It doesn't seem like you're sending anything obviously sensitive or doing anything in bad faith (though, I do see api errors being sent, which could potentially leak sensitive info), but you gotta admit that that's scary seeing you as the sole dev for this. Plus, it's opt out too. Sorry, it'…
Comment linking /v1/event
on “Show HN: OSS Agent I built topped the TerminalBench on Gemini-3-flash-preview”Submitted GPT-5.6-terra used 48.5% more context than Mimo-2.5-pro as a story · 2 points
HN discussionInteresting things Dirac does: 1. Uses an optimized version of Hash-Anchored edits for file editing ( https://dirac.run/posts/hash-anchors-myers-diff-single-token ) 2. Utilizes language's AST to decide what to fetch into context, entirely avoids large code file reads 3. Batches all operations. Does large number of reads/edits simultaneously (you can see a video demo for deepseek-v4-flash here https://www.reddit.com/…
Comment linking /posts/hash-anchors-myers-diff-single-token
on “Show HN: OSS Agent I built topped the TerminalBench on Gemini-3-flash-preview”Submitted Don't Conflate 'Minimal' with Minimal Effort as a story · 2 points
HN discussion> Hermes is one of these OpenClaw clones So that's what it is. Reading its README I thought it was another harness like Pi [1], but with built-in memory so it remembers what it learns, and gets more capable the longer it runs. Like Letta [2], Dirac [3][4] and the other "more experimental harnesses that look interesting but I haven't had time to try out". 1. https://pi.dev/ 2. https://www.letta.com/ 3. https://dirac.…
Comment linking /
on “HERMES.md: Anthropic bug causes $200 extra charge, refuses refund”Submitted Peak lazy engineering: Let the code answer its own questions as a story · 2 points
HN discussionSubmitted Cache hit rate dropping by 20% doubles your agent's bills as a story · 1 points
HN discussionSubmitted Cache hit rates of Inference are more meaningful than the headline costs as a story · 1 points
HN discussionSubmitted Hash anchors and Myers diff and single-token anchors: 60% cheaper AI code edits as a story · 1 points
HN discussion