OpenAI revives GPT-3.5 Turbo API. Now faster and 10x cheaper, it is powering Snapchat, Quizlet, Instacart, and Shopify with smarter, AI-driven features.

demonstrates strong recognition of paywalled O’Reilly book content … compared to OpenAI’s earlier model GPT-3.5 Turbo. In contrast, GPT-3.5 Turbo shows greater relative recognition of publicly ...

OpenAI launches GPT-4.1 with improved coding, long-context support, and updated data. Available via API only, it outperforms ...

The models are available to developers through OpenAI’s application programming interface (API). OpenAI is releasing three sizes of models: GPT 4.1 ... will be able to download and modify ...

It’s still under the GPT-4 family umbrella, but OpenAI says it performs better than its siblings on many fronts. The o4-mini model is the budget-friendly alternative. It’s faster and cheaper ...

OpenAI launched a new family of AI ... following are particularly valuable. On Scale’s MultiChallenge benchmark, GPT-4.1 scored 38.3%, outperforming GPT-4o by 10.5 percentage points.

Called Codex CLI, it's a lightweight and open-source agent that can take advantage of o3 and o4-mini, with GPT-4.1 support coming later. For those who want even more computing power, OpenAI is ...