Open models by OpenAI

Open models by OpenAI — All Guides

Open models by OpenAI are open-weight reasoning models for developers and teams that want more control. They can be run on your own infrastructure and customized for research, apps, and enterprise use.

Guides & Articles

DeepSeek V4 Pro tested: massive open-source model with surprising real-world results

DeepSeek V4 Pro tested: massive open-source model with surprising real-world results

DeepSeek V4 Pro has arrived as the largest open-weight model yet, with a 1M token context and aggressive pricing. This hands-on test walks through how it actual…

OpenAI GPT‑5.4: the new all‑in‑one model for coding, agents, and knowledge work

OpenAI GPT‑5.4: the new all‑in‑one model for coding, agents, and knowledge work

GPT‑5.4 merges OpenAI’s best reasoning, coding, and agent capabilities into a single flagship model with a 1M token context window. Here’s how it compares to Cl…

New world models, GLM 5.2, robot waifus, and Midjourney’s AI spa: this week in AI

New world models, GLM 5.2, robot waifus, and Midjourney’s AI spa: this week in AI

This week in AI brings a wave of new open models for video, images, and science, a breakthrough open-source LLM in GLM 5.2, powerful robotics demos, and even Mi…

Get free API keys for popular AI models in 2026 (Claude, OpenAI, Gemini & more)

Get free API keys for popular AI models in 2026 (Claude, OpenAI, Gemini & more)

Want to experiment with top AI models without burning through your credit card? This guide walks you through several platforms that give you free or low-cost AP…

DeepSeek V4, OpenCode, and Superpowers: why this open-source stack feels insane

DeepSeek V4, OpenCode, and Superpowers: why this open-source stack feels insane

DeepSeek V4 Flash and Pro have landed with a 1M-token context window and serious potential for open-source AI. Here’s how they perform in real coding workflows …

Kimi K2.6: open-source powerhouse for coding, web design, and AI agents

Kimi K2.6: open-source powerhouse for coding, web design, and AI agents

Kimi K2.6 is Moonshot AI’s new open-source, open-weights model built for serious coding, web design, and agent workflows. Here’s how it compares to top closed m…

DeepSeek V4 is here: open-source powerhouse with 1M token context

DeepSeek V4 is here: open-source powerhouse with 1M token context

DeepSeek V4 has arrived with two massive open-source models, a 1M token context window, and performance that rivals top closed models. Here’s what’s new, how it…

DeepSeek V4 is here: inside the 1.6T-parameter Pro and ultra-efficient Flash models

DeepSeek V4 is here: inside the 1.6T-parameter Pro and ultra-efficient Flash models

DeepSeek V4 has arrived with a 1.6 trillion parameter Pro model and a highly efficient Flash variant that promise huge leaps in reasoning, coding, and long-cont…

Nasdaq jitters, China’s AI push, and what the tech sell-off really means

Nasdaq jitters, China’s AI push, and what the tech sell-off really means

A sharp pullback in chip and AI stocks is colliding with rising geopolitical risk and a fast-moving AI race with China. Here’s what’s really driving the volatil…

How to use GLM 5.2 in Claude Code (and when it actually beats Opus)

How to use GLM 5.2 in Claude Code (and when it actually beats Opus)

GLM 5.2 is an open-source giant model that plugs surprisingly well into Claude Code, often running faster and about five times cheaper than Opus for many everyd…