Last week we revamped Liteparse to be the fastest PDF parser out there ⚡️ An underrated part of liteparse is it doesn't just give you text. It gives you bounding boxes that a coding agent can use to paint exact audit trails back to the source document. For instance, check out the deep research skill we compiled in liteparse_samples: https://t.co/eoICBmvEnq Come check out liteparse: https://t.co/JNER0mVcB8 We are hard at work making liteparse even better (e.g. Markdown support). Please feel free to open up issues, PRs, and let us know your feature requests 🙏

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We're presenting ParseBench at CVPR 2026 today. 🦙 Come learn why document understanding is an AGI-complete problem (an agent can't act on a doc it can't correctly read, and reading a real enterprise table is harder than it looks). The first doc-parsing benchmark built for AI agents: 2,000+ human-verified pages 167K+ test rules 5 dimensions: tables, charts, faithfulness, formatting, grounding Fully open source. 📍 Talk TODAY, June 4, 9–10 AM at CVPR. Come say hi 👇 🤗 https://t.co/skla84GVTc 💻 https://t.co/h7SpuTWYVn 📄 https://t.co/VnKcb48oJl

We're presenting ParseBench at CVPR 2026! ParseBench is the most comprehensive document understanding benchmark for VLMs. ✅ It contains 2k pages of real-world enterprise documents ✅ It has comprehensive evaluation metrics around tables, charts, visual grounding, semantic formatting, and content faithfulness The core goal is measuring whether models can semantically interpret a document in the right way, without having models overfit to our precise benchmark. Parsing 100% of PDFs to 100% accuracy is the final boss for document OCR. In general, the latest frontier models have been tuned for coding, math, and scientific reasoning as opposed to precise visual understanding; hope more benchmarks that these will encourage overall progress towards solving this problem! Poster is below. If you want to learn more come check out our site or 30-page ArXiv paper: ParseBench: https://t.co/PWczfhp0OX ArXiv: https://t.co/2dEJIaBBkr

Most AI pipelines are only as good as the data we provide them with, and that usually means PDFs or other unstructured documents. Contracts, invoices, reports... All have special layout, language, and context mixed together, and getting reliable structured data out of them is still one of the hardest unsolved problems in enterprise AI. Parse-Flow is an open-source project we built to tackle this head-on. It puts four document processing primitives at the center of a visual workflow designer: 📄 Parse — clean markdown and text from raw documents 🔍️ Classify — assign documents to user-defined categories ✂️ Split — segment documents into typed chunks 🪏 Extract — pull structured JSON against a schema You drag steps onto a canvas, drop in a document, and watch events stream back as the pipeline runs. Under the hood it's powered by a LlamaAgents workflow that walks your flow one step at a time, making every transition observable and every failure a first-class value. 📚️ Full write-up on the architecture here: https://t.co/my2ZT6wGnX 👩‍💻 Source code: https://t.co/vtuo7vXt9i

The Agent Open: AI's Pickleball Tournament 🏓 Come put your code and backhand to the test and embrace the full Open experience. Custom built out courts. Stadium seating. Exhibition matches by AI leaders. Fresh agent merch. Every infra startup you love, all in one place. Brought to you by in collaboration with: @braintrust , @browserbase , @cursor_ai , @modal , @p0 , @turbopuffer Where were you during the first Agent Open? Come make history. SF Edition. 👇 https://t.co/B2rkZC9gMJ

Parsing a document accurately is one thing. Proving where every value came from is another. When a compliance team reviews an AI extraction, or an auditor needs to sign off on a figure pulled from a financial filing, "it came from this document" isn't enough. They need to see exactly where. The specific cell in the table, the exact line on the page, the precise word the agent used. Most parsers can get you to a paragraph or a table block. That's where the trail ends. Today we're shipping Granular Bounding Boxes in LlamaParse — word, line, and cell level coordinates for every value in your document. The result is a complete, verifiable trail from every extracted value back to its exact source in the document. Built for audit workflows, compliance review, and any pipeline where verification isn't optional. Read the full announcement → https://t.co/Me1QFEka8n

Day 0 Anthropic Fable 5 in ParseBench: We tested the model's advancements when it comes to document understanding. The model clearly peaks when it comes to adherence to the original text: 📃 Content faithfulness: 90.02% vs 86.19% (Gemini 3 Flash) and 86.81% (GPT-5.5) 🔢 Semantic formatting: 72.62% vs 58.35% and 60.12%, a 12+ point lead These are two of the most important metrics for SOTA document understanding: does the output preserve what the document actually says, and does it preserve formatting that carries meaning? But ... it's not a sweep there continues to be a lot of alpha in unlocking document understanding for frontier models. Full results below 👇

Claude Fable 5 thinks document parsing is beneath it It is absolutely crushing on all reasoning-intensive/long horizon benchmarks: SWE-Bench Pro, FrontierCode, GDPval, Runescape, etc. But for document understanding tasks, it is roughly equivalent with Gemini 3 Flash in performance, at roughly 10-15x the token cost. We benchmarked the model on ParseBench and compared it against all other frontier models. It is definitely up there compared to other frontier models, but falls far short of specialized OCR providers. What we found interesting is that Fable 5 is self-aware about this. When we ask the model what tasks it enjoys the last, it actively said that it dislikes tasks "where the request is fully specified and the answer is fully known" - implying part of it being bad is due to laziness and lack of willingness to actually solve the task at hand. For a full list of results across different frontier models, check out ParseBench! https://t.co/PWczfhp0OX

LiteParse, our open-source/Rust-based doc parser, runs so quickly that Claude Fable 5 doesn't think it's real 🔥 It is the fastest document parsing solution on the planet and a great choice for your AI document workloads. Check it out: https://t.co/VfA6yJwzcZ https://t.co/DUjhiF2CTq

As frontier models (e.g. Fable 5) continue to push the task horizon of knowledge work automation, it becomes ever more important for humans to be able to audit decisions back to the source context. It is extremely easy for agents to cite an entire document or document page, but much harder for them to trace back to the exact numbers/words/figures within a page. Today we've launched granular bounding boxes within LlamaParse, which allows you to obtain visual citations of every single word in the document. This allows human users to audit exact words and figures - not just general document regions or entire pages! Come check it out: https://t.co/TqP6OT5U5O

Congrats to the Microsoft AI team on MAI-Thinking-1! There's an art and science to post-training - navigating tradeoffs, grounding the model in what's meaningful to users, crafting a set of tastes and views. It shows in the model. Proud of the work we did together and to see them pushing the frontier. https://t.co/K9NxLO4jsP

Introducing ComplexConstraints — a new IF benchmark designed to test whether models can handle the kinds of constraints that show up in real work: 1. Conditional constraints (fire only when specific conditions are met) 2. Planning constraints (many requirements satisfied simultaneously) 3. Multistep constraints (each step feeds the next) 4. Implicit constraints (a competent colleague would just know). Models currently score between 0% and 40%. Here's an example: imagine you're a film producer drafting next week's shooting schedule. Two actresses are only available Tuesday and Thursday. The exterior scenes need daylight, but the forecast calls for rain on Wednesday. Tom's stunt double doesn't arrive until Friday, and Chris and Sydney don't get along. There are twenty-six interdependent constraints, and missing any one is a failure. What's interesting is also what the data teaches. We trained a Qwen-4B model on 1K ComplexConstraints companion examples. It reached parity with a model 60x its size, and the gains transferred to other IF benchmarks like MultiChallenge and AdvancedIF. Single-turn data even generalized to multi-turn behaviors, because tracking simultaneous requirements without dropping the lower-priority ones is the same skill multi-turn IF tests. Read more! Blog post: https://t.co/Su8UQH5EZd Leaderboard: https://t.co/WdMCiKov7Z

Scott Aaronson on the new AI math breakthroughs: "It seems to me that we’re now over the top of this particular rollercoaster, and it will keep accelerating until we reach the bottom, wherever that might be. I don’t know whether to hope or dread that solutions to P versus NP and all our other great problems will be included in the ride—that our role, as human mathematicians, will be reduced to (at most) deciding which questions we find interesting and then understanding AI models’ answers to those questions. But maybe that won’t happen. Maybe the new AI mathematicians will soon hit a wall, because they lack the uncomputable quantum gravity microtubules of Penrose and Hameroff, or some other magic human ingredient. The fantastical thing is that, one way or the other, we’re going to find out empirically before very long." I don't think we will "reach the bottom". AI will keep getting better in math, and fast. And unlike Go, where the limit is that the AI already plays an almost perfect game (meaning that there is probably no way mathematically to beat the AI with handicap), there is no upper limit in math ability. So we are heading to interesting times for math, and fast. https://t.co/nlVFm3uCv4

Claude Fable 5 is unusable at this time. How the hell is this prompt a cybersecurity or biology risk?! Almost every prompt I've tried gives me the same error! What’s going on Anthropic? https://t.co/osdvLFrMON

@unixpickle confirmed on math and physics. making progress on 50 yo open math problem shows a lot of struggle, but making progress on bleeding edge theoretical physics has been so much easier. https://t.co/fMLvTDPOzL

My second time as a speaker at gstar summit in Vietnam. This time I am honoured to be chilling (I mean sitting) on a panel with colleagues @lmthang and @edchi 😀. I really enjoyed the vibes and company and meeting new people. 🫡 Events by @lmthang and @newturing have always not only been super impressive in terms of speaker calibre density but also sota in organization and hospitality. 😆 These two days have been a much needed retreat for me and it's been really timely! 😀 Also enjoyed hanging out with @edchi, I wanted to try to get a photo with @lmthang but it was impossible to catch this Vietnamese national hero for a selfie. 😀

Hanging out with @lmthang and @YiTayML for multiple days in Vietnam and Google Singapore. And great event with @newturing on AI and humanity. Thank you for hosting!! https://t.co/lFg7pqB26a

Badminton battle with Zichen @zzlccc this morning. 😆 We have an AGI badminton club in GDM Singapore. 🫡 Night time RL-ing Gemini, morning time training ourselves. 🔥 Ngl, finding a sport to enjoy and keep healthy has been one of the best choices of my life. 😀 https://t.co/IZyElRuuIP

AWS does not even try to simplify things these days. These are their Sonnet 4.5 service quotas. Cross-region model inference vs Global cross-region model inference Super obvious https://t.co/2VqsXGkiKp

Claude Code Skills security skills👇🏼 🔖 Bookmark this, you never know when you're going to need them https://t.co/DQqhF0BoTY

This Evolution of the Programmer in 2024–2026 by Steve Yegge is spot on. I myself am somewhere between stage 6-7. https://t.co/GEXKKhVUyX

I love the models Anthropic are offering, but I seriously hope it's a mistake that they're blocking alternative harness providers, like @opencode, from working with their subscriptions. Seems very customer hostile. https://t.co/afxEQ0XTFb

most screenshot APIs want a human to sign up, read docs, and paste a key into an env var. but the thing that needs the screenshot now is your agent. npx https://t.co/R5rFWt2SXm https://t.co/BQWx8PIy2M one line, hosted image back. 👇 https://t.co/TAJlkLd6fL

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@foxtomb232 https://t.co/Siq6SpiFwd

Three things @vercel does really well on their homepage: 1. Hero: 7 words, 2 buttons. deploy now or talk to sales 2. Proof is numbers, not logos: 7m to 40s builds, 95% faster loads 3. First and last section: the same CTA, Start Deploying Grabbed with one line. https://t.co/5XYwqcEHQi

Delve into the world of sleep disorders as we shed light on sleep onset insomnia and circadian rhythm disorders. Learn how sleep testing plays a crucial role in diagnosing these conditions, providing valuable insights into your sleep patterns and underlying causes.💤✨ #insomnia https://t.co/gWriDLhaup

Dr Chopra explains the proper #melatonin dosage for optimal sleep. Learn how to align melatonin intake with your body's natural sleep-wake cycle to promote healthy circadian rhythms. Say goodbye to sleepless nights and embrace the power of melatonin, the natural sleep regulator https://t.co/QrPrN7wOs8

Unveiling the Nighttime Messenger: How Melatonin Signals Your Body to Rest 🌙💤 Discover how this hormone, produced by the pineal gland, serves as a powerful signal that it's time to wind down and prepare for sleep.😴 #sleep #sleepdoctor #sleepdisorders #sleephealth #melatonin https://t.co/fy1Q8r86tO

Different types of sleep apnea 💤😴 #sleep #sleepdoctor #sleepdisorders #sleepapnea #remsleep #cpap #oralappliance #sleeptests #poorsleep #health #sleepproblems #sleepmedicine #snoring #insomniac #mouthbreathing #apnea #empowersleep #digitalhealth #mentalhealth #mentalwellness https://t.co/AgSaFBFdH5

In our latest blog post, we shed light on the relationship between hot flashes and disrupted sleep patterns, unraveling the scientific reasons behind these disturbances. Learn more at the link in our bio! #sleep #womenshealth #menopause #hotflashes #sleephealth #sleepdisorders https://t.co/MRHLXaFtGL

Circadian science explores the intricate rhythms governing our body's internal clock, influencing vital processes like sleep-wake cycles, hormone release, and metabolism. #sleep #sleepdoctor #sleepdisorders #sleephealth #circadian #nightroutine #circadianrhythm #bodyclock https://t.co/i02ul6uyYA

By identifying and reshaping negative thought patterns and behaviors surrounding sleep, CBT-I empowers you to build healthier sleep habits.🌟🛌 #CBTI #sleeptherapy #insomnia #cantsleep #stress #anxiety #mindfulness #mentalhealth #sleep #sleepdoctor #sleepmedicine #sleepdisorders https://t.co/X6Hv27sFIN