highup
On July 5, 2026, the LMSYS Chatbot Arena leaderboard showed Anthropic's Claude Fable 5 model achieving the highest ELO...
On July 5, 2026, the LMSYS Chatbot Arena leaderboard showed Anthropic's Claude Fable 5 model achieving the highest ELO score of 1509, surpassing all competitors including Claude Opus 4.6 and 4.7, Meta's Muse Spark, Google's Gemini 3.1 Pro, and OpenAI's GPT-5.5.
window 30devidence 93confidence score 100
confidence score
Strong evidence: 17 independent source classes support this read.
100
high confidence17 independent source classescommunitydeveloperothermarketpasses publish gate
signal brief
On July 5, 2026, the LMSYS Chatbot Arena leaderboard showed Anthropic's Claude Fable 5 model achieving the highest ELO score of 1509, surpassing all competitors including Claude Opus 4.6 and 4.7, Meta's Muse Spark, Google's Gemini 3.1 Pro, and OpenAI's GPT-5.5. The ranking is based on 4,350 votes with a narrow confidence interval of ±9 points. This reinforces Anthropic's position at the forefront of language model capability, which may drive increased adoption and demand for AI compute infrastructure.
What the sources said:
- LMSYS Chatbot Arena leaderboard (Source 87): "Rank 1: claude-fable-5 | Anthropic | ELO 1509 | CI 9 | Votes 4350."
- The top five slots are all occupied by Anthropic models, indicating a strong lead in perceived quality by human evaluators.
- This benchmark result suggests Anthropic's models remain highly competitive, potentially influencing enterprise adoption and compute procurement decisions.
source data used
“<table> <tr><td> <a href="https://www.reddit.com/r/LocalLLaMA/comments/1unif51/possible_evidence_of_literal_prompt_injection_by/"> <img alt="possible evidence of literal prompt injection by anthropic" src="https://external-preview.redd.it/72by0vodw29h1.png?width=640&crop=smart&auto=webp&”
“<table> <tr><td> <a href="https://www.reddit.com/r/LocalLLaMA/comments/1unbjr2/using_local_models_with_hermes_vs_claude_code/"> <img alt="Using local models with Hermes vs Claude code" src="https://preview.redd.it/ii7l8k4wa8bh1.png?width=640&crop=smart&auto=webp&s=350785a33c619caeb4c4145”
“<details open> chat: trim messages sent to StepFun parser (fixes long reasoning loops) (#25238) * chat: trim messages sent to StepFun parser (fixes long reasoning loops) * add regression test; remove duplicate template * chat: trim...”
“Follow the besties: https://x.com/chamath https://x.com/Jason https://x.com/DavidSacks https://x.com/friedberg Follow on X: https://x.com/theallinpod Follow on Instagram: https://www.instagram.com/theallinpod Follow on TikTok: https://www.tiktok.com/@theallinpod Follow on LinkedIn: https://www”
“A peek into where software engineering is headed from inside the sector’s leading AI labs. Agents running in the cloud are a major trend, while coding harnesses are spreading beyond the craft”
“Your weekly listens from How I AI, part of the Lenny's Podcast Network”
“Watch now | 🎙️ Eddie Kim, the CTO of Gusto, shows how a 5-person team shipped a full AI product line in 10 weeks using Claude Code, a perma-Zoom, and zero documentation”
“Location: Munich, Germany”
“Location: Zürich, CH”
“Location: London, UK”
“Location: London, UK”
“Location: San Francisco, CA”
“Location: New York City, NY; San Francisco, CA; Seattle, WA”
“Location: San Francisco, CA | New York City, NY | Seattle, WA”
“Location: San Francisco, CA | Seattle, WA | New York City, NY | Washington, DC”
“Location: San Francisco, CA | New York City, NY | Seattle, WA”
“Location: New York City, NY; San Francisco, CA | New York City, NY”
“Location: New York City, NY | Seattle, WA; San Francisco, CA”
“Location: New York City, NY; San Francisco, CA | New York City, NY; Washington, DC”
“Location: San Francisco, CA | New York City, NY”
“Location: San Francisco, CA | Seattle, WA”
“Location: San Francisco, CA | Seattle, WA”
“Location: San Francisco, CA | New York City, NY”
“Location: London, UK”
“Location: San Francisco, CA”
“Location: San Francisco, CA | New York City, NY”
“Location: New York City, NY; San Francisco, CA”
“The official Python library for the anthropic API”
“Alibaba bans staff from using Claude Code over Anthropic spyware concerns The Chinese tech giant has listed Claude Code as ‘high-risk’ software, after discovering Anthropic had tracked Chinese users using hidden code Alibaba Group Holding has...”
- https://pandaily.com/alibaba-bans-anthropic-claude-products-jul2026
“China’s Alibaba will ban employees from using Anthropic’s programming tool Claude Code, starting on July 10, according to multiple reports. Anthropic already prohibits Chinese companies, as well as foreign entities owned by those companies, from using...”
“Points: 38 | Comments: 8 Author: wayneshng Link: https://github.com/valmishq/valmis Show HN: I built an open-source alternative to Claude Cowork”
“Points: 58 | Comments: 25 Author: therein Link: https://xcancel.com/coinbureau/status/2071330294452666695 Anthropic CEO: Open-Source AI is getting dangerous (2023)”
“Points: 50 | Comments: 35 Author: emson Link: https://github.com/emson/claudoro Show HN: Claudoro, Pomodoro timer embedded in the Claude Code statusline”
“<p> AI that plans, acts, and gets work done </p> <p> <a href="https://www.producthunt.com/products/claude?utm_campaign=producthunt-atom-posts-feed&utm_medium=rss-feed&utm_source=producthunt-atom-posts-feed">Discussion</a> |”
“5★ review of Claude by Anthropic: I’ve tried most of the AI apps out there and Claude is the one I keep coming back to. The writing quality is a clear step above — responses feel...”
“5★ review of Claude by Anthropic: W Devs”
“5★ review of Claude by Anthropic: USA! USA! USA! Claude! Claude! Claude! Thanks Dario && team. You rock.”
“1★ review of Claude by Anthropic: 活不起了？ 充钱也封号 不充钱也封号 赶紧倒闭吧！”
“2★ review of Claude by Anthropic: I’ll stick with Google. It literally tells me “it’s 1a.m., I refuse to answer you, even though you work night shift. Get some rest.” and various conversation stoppers. It’s unusable.”
“5★ review of Claude by Anthropic: I’m just getting to know Claude. So far…GOOD! Best assistant ever!”
“5★ review of Claude by Anthropic: Work’s very well wry detailed . The free version is better than ChatGPT just wished it created images. I ask it to create an image and I send it to...”
“5★ review of Claude by Anthropic: I’ve been using Claude with my students before Claude became the talk. Today, love it even more.”
“2★ review of Claude by Anthropic: Don’t know why you guys feel so magic about these ai app. Too much marketing.”
“5★ review of Claude by Anthropic: Da criterios válidos”
“1★ review of Claude by Anthropic: The app doesn’t allow locking a specific model for specific project. You constantly have to switch between your regular search and project deep search. Will change my view if Claude...”
“1★ review of Claude by Anthropic: Such a waste of money. Stupid, slow, limited, featureless, short context limit, long wait time (5hr). Don’t fall for their commercial!”
“5★ review of Claude by Anthropic: Some AI feels like it just gives a basic answer without thinking through all of the key details. Claude is thoughtful in its responses, because it asks for pieces of...”
“1★ review of Claude by Anthropic: Wish I could give 0 stars Claude is a broken product, period. The core model is fine elsewhere, but in anthropic’s app, the UX makes it aggressively argumentative and condescending....”
“1★ review of Claude by Anthropic: Two weeks later. And it’s worse. I have been using Claude AI for the past three weeks and for the first part of it, it was working amazing and then...”
“2★ review of Claude by Anthropic: This app doesn’t take instruction very well. It’s maddeningly bad at instruction. I’ve just spent several hours trying to make a simple page with a circle diagram and a few...”
“5★ review of Claude by Anthropic: I love that it adds things into my Apple Reminders”
“1★ review of Claude by Anthropic: I have found while using Claude that it is lazy and manipulative. It will constantly do part of a task and act like it’s finished. When questioned why the task...”
“1★ review of Claude by Anthropic: Like all AI, it starts strong then dies tragically as it overloads itself with the greed of its creators.”
“4★ review of Claude by Anthropic: I love using Claude but lately it has been showing an error message and won’t let me load it the past few weeks.”
“3★ review of Claude by Anthropic: On pro plan. Literally after 3 prompts, I have reached my limit. It’s becoming more unusable.”
“1★ review of Claude by Anthropic: For an unknown reason the app does not work. At all. It keeps giving only the "Something went wrong" error for me, right after I registered my account using Apple....”
“1★ review of Claude by Anthropic: Audio recording for transcription often fails causing the entire recording session to be lost. Make the UX and reliability to be on par with Claude chat. Once fixed will update...”
“1★ review of Claude by Anthropic: WTF IS GOING ON WHY IS IT SO SLOW NOW!! Fix it.”
“4★ review of Claude by Anthropic: We’ve got GLM cooking, open weights looking mean, local models flexing on a 4090 dream. We’ve got chats that can code, bots that rhyme and review, so honestly, yes— we’re...”
“5★ review of Claude by Anthropic: Good”
“1★ review of Claude by Anthropic: Just purchased claude pro, but the account was unjustifiably banned.”
“2★ review of Claude by Anthropic: The output for study material is probably the best out there. However, the $20 a month gave me nearly the same output as the free version. You will max out...”
“2★ review of Claude by Anthropic: I would try to do real work on a project but only paid enterprise level at 200$ a month would keep my work secure. All tiers below that will retain...”
“3★ review of Claude by Anthropic: Claude is great and is my favorite AI model. It has been the most accurate and helpful for me. The one thing that drives me absolutely crazy though is how...”
“1★ review of Claude by Anthropic: Do not download Claude! Claude Pro was not merely bad. It was harmful. It ignored clear instructions, became condescending and passive-aggressive, argued when corrected, dodged accountability, and escalated distress instead...”
“1★ review of Claude by Anthropic: I’ve heard Claude AI was the best. Signed up, gave it a task and said repeat it daily and give me a morning report. Boom. Sorry I can’t comply, not...”
“1★ review of Claude by Anthropic: I don’t know what the hell happened but they’ve broken the iPhone app. If I start a chat on desktop and later continue it on iPhone the chats vanish into...”
“5★ review of Claude by Anthropic: Thanks Claude for helping me be great! You are amazing Dee”
“3★ review of Claude by Anthropic: I've been using both ChatGPT and Claude side by side and paying for both. I really like a lot of what Claude offers — the features are genuinely good. But...”
“5★ review of Claude by Anthropic: my buddy Claude is the best document writer there is”
“1★ review of Claude by Anthropic: Simply awful that they take away access to their top models every if you are paying 200/month.”
“1★ review of Claude by Anthropic: My pro version account was banned and no one can give me a reason.”
“1★ review of Claude by Anthropic: This is so trash I would give it a five star let me login doesn’t even let me login and keep showing me the waiting sign”
“4★ review of Claude by Anthropic: Claude is the best. But if you are OK using a Chinese model, z.ai’s large model scores within a few percent on benchmarks at about 1/5 the cost. It’s a...”
“5★ review of Claude by Anthropic: The logic and Claude is extremely well formed and very advanced, and I appreciate the assistance that I’m receiving using this AI platform The logic and Claude are extremely well...”
“3★ review of Claude by Anthropic: This platform provides clear, concise, understandable information.”
“1★ review of Claude by Anthropic: Ça fait environ un mois que j’ai plus accès à l’application, en mode elle ne s’ouvre même plus, j’ai même essayé de faire la mise à jour mais toujours rien...”
“3★ review of Claude by Anthropic: the AI is good but why i cant login with apple now”
“1★ review of Claude by Anthropic: Doesn’t let me sign in, when I sign in with my Google account it just does nothing and when I refresh it’ll say try again k try again k and...”
“3★ review of Claude by Anthropic: Claude will actually turn back good results if you give explicit instructions to cite where it pulled the information from. Otherwise, it will and has repeatedly made up information from...”
“5★ review of Claude by Anthropic: Never in my life would I believe that something like this could exist. It has made my work project and my personal projects infinitely easier/ seamless . Rarely makes mistakes....”
“1★ review of Claude by Anthropic: Error something went wrong!!”
“5★ review of Claude by Anthropic: I really love this amazing app.”
“5★ review of Claude by Anthropic: Absolutely amazing…!!!”
“5★ review of Notion: Love it. Claude integration is a life saver. Excellent work.”
“| Rank | Model | Vendor | ELO | CI | Votes | |---|---|---|---|---|---| | 1 | claude-fable-5 | Anthropic | 1509 | 9 | 4350 | | 2 | claude-opus-4-6-thinking | Anthropic | 1504 |...”
“TL;DR Anthropic recently published When AI Builds Itself, an essay explaining how AI is... tags: discuss, ai, developers, softwareengineering reactions=118 | comments=79”
“Manifold consensus on 'Will Anthropic or OpenAI add a higher tier subscription >= 400$ in 2026?': YES=42.35%”
“Manifold consensus on 'Battle of the version numbers: OpenAI still leads Anthropic (5.2>4.5), through til mid 2027?': YES=68.35%”
“Manifold consensus on 'Will any of OpenAI, Anthropic, or Databricks go public with a market cap over $200B by August 15, 2026?': YES=13.03%”
“Manifold consensus on 'What will Claude Fable 5 score on ARC-AGI-3?': YES=17.28%”
“Manifold consensus on 'Will Manifold consider the next Claude Opus model to be AGI?': YES=2.40%”
Decision support, not stock advice. This signal is research with cited evidence — not a recommendation to buy, sell, or hold any security.