Coding workflow
Codex ↗
Coding workflows include investigating code changes and preparing or reviewing pull requests.
Official product / docs →OpenAI · GPT models and agent tools
OpenAI GPT · Codex
SOURCE CHECK
OpenAI’s current API lineup separates demanding reasoning, balanced workloads and high-volume use. Its agent stack adds tools, execution and workflow management around the underlying models.
Latest briefings
Latest models & families
As listed on 2026-10-23Selected current official listings; specialized models and access stages are identified separately.
| Model / family | Positioning & use |
|---|---|
| GPT-6 Astra ↗Flagship | The flagship option for complex reasoning and coding in the current model guide. |
| GPT-6.1 Sol ↗Balanced | Positioned as a balance between intelligence and cost. |
| GPT-6 Luna ↗High-volume | Positioned for focused, cost-sensitive, high-volume workloads. |
Agent tools & products
Managed runtime
Agents API ↗
A managed Codex harness for multi-step work with saved sessions and tool execution.
Official product / docs →Developer SDK
Agents SDK ↗
Control the agent loop, custom tools and handoffs inside your own application.
Official product / docs →Where to start
Start with the model guide for API selection. Choose an agent runtime separately based on who should run the tools and keep task state; product subscriptions and API access are separate decisions.
Official sources
Checked 2026-10-23 · Original introductions based on vendor documentation, not hands-on reviews.
- GPT-6 Astra ↗developers.openai.com
- Codex ↗learn.chatgpt.com
- Agents API ↗developers.openai.com
- Agents SDK ↗developers.openai.com
Availability and product terms can change. Current means checked on the date above, not a live feed or a claim to list every model.