Howell Sze @HowellSze
Building at Reflection AI Sydney, New South Wales Joined March 2013-
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Reflection’s first model, Beam, scores 30 on the Artificial Analysis Intelligence Index, placing it #2 among US open weights models Beam is an open weights model with 501B total and 23B active parameters, released on @huggingface Congratulations to @reflection_ai on the release! Key takeaways: ➤ Second among US open weights models: Beam scores 30, behind only Meta's Muse Spark Open (39) and ahead of yesterday’s NVIDIA Nemotron 3.5 Super VL (26) release. Outside China, only Muse Spark Open and the UAE's K2 Horizon (31) score higher ➤ Token efficient for its intelligence: Beam uses ~26k output tokens per Intelligence Index task compared to K2 Horizon, one point ahead, which uses twice as many (~52k). Proprietary models still set the frontier, with GPT-6 Astra (max) scoring 53 on the same budget (~27k) ➤ Strong on agentic workflows, weaker in the terminal: Beam scores 48.5% on AutomationBench-AA, 11 percentage points ahead of K2 Horizon (37.2%) and level with Qwen3.8 27B (48.2%). Terminal-Bench 4.0 is a weak point, where Beam scores 3.0%, behind Qwen3.8 27B (5.6%) and Muse Spark Open (8.1%) ➤ Knows more, guesses more: On AA-Omniscience it answers 33% of questions correctly, well ahead of K2 Horizon (18%) and Qwen3.8 27B (16%). But its hallucination rate is 47%, against 26% for K2 Horizon and 30% for Qwen3.8 27B, giving Beam a net index score of 1.5, ahead of both peers (−3.0 and −10.0) Other model details Context window: 1M tokens Modalities: Text Parameters: 501B / 23B
Beam weights are out today (Apache 2.0 license). We integrated Beam across 40+ different partners. And are also open sourcing Mirror CLI - the harness Beam was trained against. Happy building.
Beam is now available across platforms, with open weights under the Apache 2.0 license - in collaboration with an ecosystem of 40+ partners. We're releasing: - Weights, tokenizer, and reference implementation - BF16, FP8 and NVFP4 weights and a DFlash2 drafter - The open source
Big moment for Western open frontier intelligence!
Introducing Beam: a highly efficient agentic open model with 501B total parameters and 23B active. - Frontier reasoning efficiency - Advances the Western open frontier on coding & agentic tasks - Trained end-to-end from scratch Full weights release this month. Learn more about
Charlie Munger said that reading was the main reason for his success in life. As a generalist, he reads about all kinds of topics. I’m sure a List of Charlie Munger’s Book Recommendations is among the top 1% of lists you can get. So here it is👇🏼
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#2 - "Everybody Is Swinging For The Fences" theslowreader.substack.com/p/everybody-is…
1) I was interested to learn last week that Zuckerberg evaluates potential executive hires/promotions through the lens of whether or not *he* would want to work for the person. I do the same when evaluating mgmt teams. And ironically, I started doing this on Zuckerberg's IPO.
@JulianTran19 @brian_armstrong Eagerly await the SEC’s non reply.
@JulianTran19 @morganhousel Great read. Wish they taught this more at school. Everyone deserves to learn this (and preferably not the hard way!)
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Have been lucky to meet with or study hundreds of companies in 2021. Here's an ongoing list of company attributes that I find interesting...
My history with #FAANMGN and the investing lessons they taught me. $FB $AAPL $AMZN $NFLX $MSFT $GOOG $NVDA Sharing with some FinTwit friends @TMFJMo @BrianFeroldi @saxena_puru @FromValue @dhaval_kotecha @richard_chu97 @7Innovator @LiviamCapital @investing_city @BahamaBen9
Storytelling is a superpower. A key to unlocking growth in your writing, startups, marketing, business, or career. THREAD: 10+ principles of effective storytelling (that you can start using today):
BREAKING: The President of El Salvador just announced that he is making Bitcoin legal tender in his country. This is the first country to take such a courageous step, but it won’t be the last.
The Ultimate Guide to Inflation. A must-read for anyone in finance. By the one and only @LynAldenContact. lynalden.com/inflation/
Phenomenal compilation of about 50 great Book summaries. Such condensed knowledge from many great books in Business, Finance, Psychology & Biographies. h/t @stig_brodersen @PrestonPysh 👏 cc: @dmuthuk @Gautam__Baid @saxena_puru theinvestorspodcast.com/billionaire-bo…
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