Perf

What it does

Perf is an AI correction layer for teams shipping AI products. It sits between your app and your models, checks every output against your rules, and fixes or blocks issues before users see them. We’re opening a limited closed beta for teams dealing with hallucinations, incorrectly parsed JSON, policy violations, or unreliable AI responses.

Perf verifies, repairs, and rejects AI outputs before they reach users, applications, or downstream systems. Build AI systems you can trust in production.

Perf checks every AI output before it reaches users or systems. It fixes errors when possible and blocks outputs that cannot be trusted. Perf checks every AI output before it reaches users or systems. It fixes errors when possible and blocks outputs that cannot befrom withperf.com

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  PrefactorJul 2026 · prefactor.tech · ▲580

  Evaluate your AI Agents in real-time

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  Perfai SecurityJul 2026 · perfai.ai · ▲291

  Find & fix live vulnerabilities in Vibe Apps with 1-prompt.

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  Predflow AIApr 2026 · predflow.ai · ▲184

  Your AI agent for ad performance

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  Graphbit PRFlowMay 2026 · ▲308

  AI code reviewer that catches what others miss

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  We built an AI to review your pull requests2025 · infinitcode.ai · ▲53

  Hey HN, We’re two developers (co-founders) with a team of 20 who got tired of spending hours reviewing PRs, so we built Infinitcode.ai, an AI-powered code reviewer that: - *Summarizes PRs in plain English*: No more deciphering 1,000-line diff jungles - *Catches more than bugs*: Security holes, performance pitfalls, code smells, even typos (yes, we’ll flag “vurnerabilities” and vulnerabilities) - *Zero onboarding*: Works instantly—no “let me learn your codebase for weeks” nonsense. Why we’re posting: We’re in alpha and need brutal honesty. Roast our tool, mock our UI, or tell us why AI will…

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  pref0Feb 2026 · ▲4

  Your agent should learn. Pref0 makes it.

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  Spira Maxima▲578

  Video model that turns script into viral social media videos

  AI · 17d ago · spira.ai

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  Rill Browser▲540

  The browser where Claude Code and Codex work beside you

  AI · 17d ago · rill.love

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  Germany's new sovereign AI model Kolibri▲424

  Kolibri is Aleph Alpha

  AI · 19d ago · tej.as

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  Giving Opus 5.5 a simulated paint canvas▲392

  Paintings by AI models: programs run through a simulation of oil paint.

  AI · 21d ago · stillwet.art

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  PixVerse R2▲381

  A real-time world model you can explore and change

  AI · 29d ago · world.pixverse.video

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  Hemory▲381

  Keep listening. Searchable memory for your AI agents.

  AI · 30d ago · hemory.com

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  Brew ▲900

  Like Claude design for email marketing

  AI · May 2026 · brew.new

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  Kilo Code for VS Code▲896

  Parallel agents, diff reviewer, and multi-model comparisons

  Dev tools · May 2026 · kilo.ai

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  StoreClaw▲806

  Grow your store profits with agents that know how to sell

  AI · May 2026 · storeclaw.ai

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  PollyReach▲795

  Give your agent a real number and voice to make calls.

  AI · May 2026 · pollyreach.ai

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  Needle: We Distilled Gemini Tool Calling into a 26M Model▲776

  Hey HN, Henry here from Cactus. We open-sourced Needle, a 26M parameter function-calling (tool use) model. It runs at 6000 tok/s prefill and 1200 tok/s decode on consumer devices. We were always frustrated by the little effort made towards building agentic models that run on budget phones, so we conducted investigations that led to an observation: agentic experiences are built upon tool calling, and massive models are overkill for it. Tool calling is fundamentally retrieval-and-assembly (match query to tool name, extract argument values, emit JSON), not reasoning. Cross-attention…

  Life & fun · May 2026 · github.com

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  Files.md – Open-source alternative to Obsidian▲730

  🌱 Private, quiet space for thinking. Simple app for .md files. - zakirullin/files.md

  Dev tools · May 2026 · github.com