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Ryan Brewer

@ryanbrewer
building for finance @OpenAI
NY | SF
ryanbrewer.me
Joined December 2018
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  • Pinned
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    Ryan Brewer
    @ryanbrewer
    Mar 5
    Excited to share that I’ve joined OpenAI to help build the future of financial intelligence. My focus is connecting models directly to the data sources, tools, and workflows analysts use every day. My team’s first product is the Excel plugin. After software engineering, finance
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    OpenAI
    @OpenAI
    Mar 5
    GPT-5.4 Thinking and GPT-5.4 Pro are rolling out now in ChatGPT. GPT-5.4 is also now available in the API and Codex. GPT-5.4 brings our advances in reasoning, coding, and agentic workflows into one frontier model.
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    Ryan Brewer
    @ryanbrewer
    19h
    Eh, not a pure LLM. Unimpressed. Show me this with no tools used and then we can consider this real progress
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    Anthropic
    @AnthropicAI
    Aug 10
    We asked an unreleased research version of Claude to take a stab at the Riemann hypothesis. It didn’t solve it, but it did make strides on a related problem: it increased the lower bound for the fraction of zeros of the Riemann zeta function that satisfy the hypothesis from
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    Ryan Brewer
    @ryanbrewer
    Aug 9
    It’s crazy how quick feature cycles are right now. Plan mode was about 2 or 3 months, AskUserQuestion was 2 or 3 months too. Goal mode was like a month. Just shows how often you need to innovate on the product side when the models are moving this fast.