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Stream
Stream - Scalable APIs for Chat, Feeds, Moderation, & Video. Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.
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Updated results from the authors: https://github.com/adobe-research/NoLiMa
It's the best known performer on this benchmark, but still falls off even relatively modest context lengths. (Cutting edge reasoning models like Gemini 2.5 Pro haven't been evaluated due to their cost and might be better.)
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Did some quick tests. I believe its the same model as Quasar. It struggles with agentic loop [1]. You'd have to force it to do tool calls.
Tool use ability feels ability better than gemini-2.5-pro-exp [2] which struggles with JSON schema understanding sometimes.
Llama 4 has suprising agentic capabilities, better than both of them [3] but isn't as intelligent as the others.
[1] https://github.com/rusiaaman/chat.md/blob/main/samples/4.1/t...
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Sam Altman wrote in February that GPT-4.5 would be "our last non-chain-of-thought model" [1], but GPT-4.1 also does not have internal chain-of-thought [2].
It seems like OpenAI keeps changing its plans. Deprecating GPT-4.5 less than 2 months after introducing it also seems unlikely to be the original plan. Changing plans is necessarily a bad thing, but I wonder why.
Did they not expect this model to turn out as well as it did?
[1] https://x.com/sama/status/1889755723078443244
[2] https://github.com/openai/openai-cookbook/blob/6a47d53c967a0...
