And now a new DeepSeek model, and appears to be fully open weights. Good benchmarks, but with open models, that isn't always as meaningful. Should be live soon to actually try.
LLMS
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DeepSeek v4 Sets New SOTA Open Source Record
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Deepseek v4 is a huge step upwards compared to DeepSeek 3, outperforms on SWE verified opus 4.6 and GPT-5.4 and sets a new record on Codeforces. Needs to be tested against opus 4.7 and GPT-5.5 tho and see if real world usage holds its promises. Big release! Sota open source
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OpenAI GPT-5.5 and Codex API Updates
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you want openai-codex/gpt-5.5 (once update is out).
codex harness is still experimental. (codex/gpt…)
API doesn't has 5.5 yet. -
Deepseek v4 pro matches GPT-5.4 and Opus 4.6 performance
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Deepseek v4 pro Evals. Roughly on par with GPT-5.4 xhigh and opus 4.6 max
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DeepSeek-V4 Released on Hugging Face
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DeepSeek-V4 just dropped on Hugging Face https://
huggingface.co/collections/de
epseek-ai/deepseek-v4
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AI Model Evolution and GPT-5.5’s “Evolutionary” Approach
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Remember o3 was only a year and a week ago! Also, only GPT-5.5 seemed to take the "evolution" piece seriously and change the setting rather than just replacing buildings with newer ones.
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GPT 5.5 Released with New Codex Features
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woke up to such brilliant vibes around GPT 5.5 and all the new features we released in Codex! the team really cooked with this model and the app quite literally burning through a lot of nights kudos to all the teams involved and enjoy GPT 5.5
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OpenAI and NVIDIA Partner to Roll Out Codex and GPT-5.5 at Scale
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Amazing to see @nvidia go all-in on Codex! We’ve started going deep with a few companies to roll out Codex and GPT-5.5. Seeing it work this quickly at this scale is exciting. Let’s fire up those Blackwells!
