The model "gpt-5-reasoning-alpha-2025-07-13" is in final testing, indicated by sightings of code showing a "reasoning_effort: high" configuration. OpenAI aims to simplify its product lineup by merging features from its conventional GPT models with the O-series reasoning models into GPT-5. This model is anticipated to enhance coding capabilities. Before its launch, OpenAI intends to release an open-weights model that can be downloaded and run independently, though it requires additional safety testing before release.
References to "gpt-5-reasoning-alpha-2025-07-13" have already been spotted on X, with code showing "reasoning_effort: high" in the model configuration. These sightings suggest the model has entered final testing phases, with testers getting their hands on the code and security experts doing red teaming on the model to test vulnerabilities.
OpenAI's new model represents an attempt to simplify its increasingly complex product lineup. GPT-5 may integrate features from both conventional GPT models and reasoning-focused o-series models into a single system.
We're truly excited to not just make a net new great frontier model, we're also going to unify our two series. The breakthrough of reasoning in the O-series and the breakthroughs in multi-modality in the GPT-series will be unified, and that will be GPT-5.
Before GPT-5 arrives, OpenAI plans to release its first open-weights model since GPT-2 in 2019, which means others with the proper hardware can download and run the AI model on their own machines.
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