--- title: "Discussion on \"Choosing the Right OpenAI Model and Reasoning Level\" | Hashnode" description: "Discussion on \"Choosing the Right OpenAI Model and Reasoning Level\". An evaluation guide to accuracy, latency, and cost across complex workloads." url: "https://hashnode.com/posts/choosing-the-right-openai-model-and-reasoning-level/6abf0d0682c3fdfa1bc9ab22" --- [Feed](https://hashnode.com/feed) / Discussion # [Choosing the Right OpenAI Model and Reasoning Level](https://blog.latentthoughts.com/choosing-the-right-openai-model-and-reasoning-level?utm_source=hashnode&utm_medium=feed) An evaluation guide to accuracy, latency, and cost across complex workloads. Oct 2 · 20 min read · blog.latentthoughts.com Updated Oct 13 Read the article - [#openai](https://hashnode.com/tag/openai) - [#model-evaluation](https://hashnode.com/tag/model-evaluation) - [#gpt6](https://hashnode.com/tag/gpt6) - [#gpt-6](https://hashnode.com/tag/gpt-6) - [#gpt-6-astra](https://hashnode.com/tag/gpt-6-astra) - [#model-reasoning](https://hashnode.com/tag/model-reasoning) ## Written by [Gary Stafford](https://hashnode.com/@garystafford) @garystafford · New York City, USA [View profile](https://hashnode.com/@garystafford) Practical AI engineering: models, agents, and evaluations: from experiments to real-world applications. Applied AI Engineer at OpenAI. I write about building AI applications, evaluating models, and turning experiments into practical solutions, drawing on my background in cloud architecture and software engineering. ## Responses 6 Markdown supported · ⌘↵ to post [Julian Neagu](https://hashnode.com/@julianneagulab) [Oct 5](https://hashnode.com/posts/choosing-the-right-openai-model-and-reasoning-level/6abf0d0682c3fdfa1bc9ab22/comment/6ac374c1f30dd6567cecec37) The repeat runs are the part that stood out to me. A model can look solid on one pass, then miss the same kind of task later. [Gary Stafford](https://hashnode.com/@garystafford) [1d ago](https://hashnode.com/posts/choosing-the-right-openai-model-and-reasoning-level/6abf0d0682c3fdfa1bc9ab22/comment/6ac374c1f30dd6567cecec37#reply-6af36a3bb23a0def963c9da0) Thanks, Julian. GPT-6 Sol at low reasoning got all 27 tasks right on the first pass, then scored 26/27 and 25/27 on the same tasks. On the regional failover task, the two later runs proposed plans costing $290 and $350 against a $260 optimum. The first pass would have put Sol/low on the shortlist. The repeats showed it missed our per-task requirement even though its overall accuracy stayed above 95%. [Akshay Gupta](https://hashnode.com/@akshay-gupta) [Oct 2](https://hashnode.com/posts/choosing-the-right-openai-model-and-reasoning-level/6abf0d0682c3fdfa1bc9ab22/comment/6abf8fc7630bbc28eddd69c1) All I want to know is how these models are helping the enterprises... because from where I am seeing it from, the adoption in enterprise is still in phases and there is a huge deployment gap. The use cases enterprises are building (or trying to build) can currently be done easily with the previous-generation models. [Gary Stafford](https://hashnode.com/@garystafford) [Oct 2](https://hashnode.com/posts/choosing-the-right-openai-model-and-reasoning-level/6abf0d0682c3fdfa1bc9ab22/comment/6abf8fc7630bbc28eddd69c1#reply-6abf9c068d61b76f1d4c4c6c) I agree with your observations, especially on the deployment gap. Many enterprise use cases can be served well by previous-generation models. The question is whether a newer model delivers a measurable improvement that justifies adopting it. This demonstration uses one newer model family and a specific mix of hypothetical complex tasks, but the evaluation approach applies across use cases, domains, and model generations. The goal is to choose what meets your requirements, not automatically choose what’s newest. Adoption also varies widely, both across organizations and within them. In my experience, platforms like X and LinkedIn tend to amplify the cutting edge; enterprise teams are often focused on integration, governance, reliability, and proving business value. Those challenges don’t disappear with a better model. [minecraftslabs](https://hashnode.com/@fantasygem) [Oct 2](https://hashnode.com/posts/choosing-the-right-openai-model-and-reasoning-level/6abf0d0682c3fdfa1bc9ab22/comment/6abf56862c497b65968982f3) The evaluation is interesting, but I’m wondering how much these results can really tell us about production performance. The benchmark uses fictional source packs and a relatively small number of tasks, so could the results change significantly with real-world data, longer conversations, tool use, or noisier inputs? I’d also be curious to see whether the cost and latency differences remain consistent across a much larger and more diverse workload. [Gary Stafford](https://hashnode.com/@garystafford) [Oct 2](https://hashnode.com/posts/choosing-the-right-openai-model-and-reasoning-level/6abf0d0682c3fdfa1bc9ab22/comment/6abf56862c497b65968982f3#reply-6abf9cb1411d8e13ac31f688) Great points. That’s a fair point. These results show how the models performed under the tested conditions; they don’t establish how they’ll perform in a particular production environment. Hypothetical, complex tasks let us control the evidence and verify answers, but I agree they don’t capture the full variability or domain specificity of real enterprise workloads. Real-world data, longer conversations, tool use, and noisy inputs could change both the model rankings and the cost and latency differences. A larger, more diverse evaluation would help determine which findings hold up. Again, this is designed as a fairly simple demonstration that introduces core concepts. The main takeaway is the evaluation method: define your acceptance criteria, test representative workloads, and compare the configurations that meet those requirements. These results are a starting point for that process, not a substitute for production-specific validation.