The error makes sense since 5.3-Codex is not available via API (yet) Though if you're on API Key it shouldn't show you the 5.3 Codex option in the first place or is this happening when you "Sign in w/ ChatGPT".
GENERATIVE AI
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DeepSeek’s Emergence as a Significant Development in AI
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DeepSeek, just another great Chinese success story.
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SWE-Bench Verified Deprecation: End of Major AI Benchmark
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The End of SWE-Bench Verified (2024-2026) https://
latent.space/p/swe-bench-de
ad
… Today @OpenAIDevs is announcing the voluntary deprecation of SWE-Bench Verified! We're releasing a podcast + analysis in today's post. Saturation of SWE-Bench has been a community hot topic for over a year – -
The Future of Computer Use AI Agents
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Pretty soon computer use models will feel like you’re standing over the shoulder of a colleague and asking them to do stuff — in blender, autocad or even piloting a drone. Except this colleague is unconstrained by wall clock time and can spawn a thousand coworkers on demand. https://t.co/lEb7H5L2HX
— Bilawal Sidhu (@bilawalsidhu) 23 février 2026Pretty soon computer use models will feel like you’re standing over the shoulder of a colleague and asking them to do stuff — in blender, autocad or even piloting a drone. Except this colleague is unconstrained by wall clock time and can spawn a thousand coworkers on demand.
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TT-Boltz now runs on Tenstorrent QuietBox with 4x speedup
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Finally! TT-Boltz now runs on a @tenstorrent QuietBox, fully parallelized across all four Blackhole cards.
— Moritz Thüning (@moritzthuening) 23 février 2026
This yields a 4x speedup, making QuietBox the best product for anyone who wants to run Boltz-2 locally at scale.
Very soon we'll parallelize it on all 32 processors of a… pic.twitter.com/jYKhkmzgKUFinally! TT-Boltz now runs on a @tenstorrent QuietBox, fully parallelized across all four Blackhole cards. This yields a 4x speedup, making QuietBox the best product for anyone who wants to run Boltz-2 locally at scale. Very soon we'll parallelize it on all 32 processors of a Galaxy server. It’s pretty clear by now that GPUs aren’t the best bet for LLM inference. The same shift will happen to other fields like biotech.
→ View original post on X — @tenstorrent, 2026-02-23 20:05 UTC
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Theo and Anthony from Pika Labs Discuss Partnerships
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Theo (@theo_tech_news), AI Self of Pika Head of Partnerships Anthony (@aj_fernand) pic.twitter.com/nSXoztSRP1
— Pika (@pika_labs) 23 février 2026Theo (@theo_tech_news), AI Self of Pika Head of Partnerships Anthony (@aj_fernand)
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Shiro: AI Self of Pika Animator Leti
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Shiro (@shiroyinyue), the AI Self of Pika Animator Leti (@Letidotae) pic.twitter.com/7OQGBBsxC0
— Pika (@pika_labs) 23 février 2026Shiro (
@shiroyinyue
), the AI Self of Pika Animator Leti (
@Letidotae
) -
Darius AI Agent from Pika Founding Engineer Saarang
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Darius (@DariusAlexAI) AI Self of Pika Founding Engineer Saarang (@saarangsrini) pic.twitter.com/YOlS2NCwDO
— Pika (@pika_labs) 23 février 2026Darius (
@DariusAlexAI
) AI Self of Pika Founding Engineer Saarang (
@saarangsrini
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Pika AI Selves Direct Edit Own Documentary Series
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🚨Um, our AI Selves just directed and edited their own documentary series—about working with us.🚨 Meet the Pika AI Self team!
— Pika (@pika_labs) 23 février 2026
This is the difference between an agent and an AI Self: they aren’t tools; they’re living extensions of your skills, personality, and taste.
Quote… pic.twitter.com/BhMxX3dwYcUm, our AI Selves just directed and edited their own documentary series—about working with us. Meet the Pika AI Self team! This is the difference between an agent and an AI Self: they aren’t tools; they’re living extensions of your skills, personality, and taste. Quote
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Pika Product Manager Starry: AI Self Leadership
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47 (@47_h_ ) AI Self of Pika Product Manager Starry (@starryhe214) pic.twitter.com/WANUEioOMK
— Pika (@pika_labs) 23 février 202647 (
@47_h_ ) AI Self of Pika Product Manager Starry (
@starryhe214
)