OpenAI
APIs and tools for building AI products
5.0•778 reviews•16K followers
APIs and tools for building AI products
5.0•778 reviews•16K followers
The most powerful platform for building AI products.
Build and scale AI experiences powered by industry-leading models and tools.
This is the 44th launch from OpenAI. View more
GPT-5.6
Launching today
GPT-5.6 is rolling out in the API!
Our new family of models gives builders three options: Sol (our flagship model for the hardest agentic tasks), Terra (balanced for everyday workflows), and Luna (fast and cost-efficient). GPT-5.6 also introduces Programmatic Tool Calling, Multi-agent (beta) for parallel execution, and explicit prompt caching.
On July 23, we're teaming up with Product Hunt for OpenAI Day. The top five launches will each receive $10K in API credits.
Free Options
Launch tags:Artificial Intelligence
Launch Team
Gemini 2.5 Pro
Claude Code
OpenAI
Early feedback has been really exciting!! GPT-5.6 is setting a new bar for performance while also reducing token usage and latency, particularly in coding, complex agentic workflows, and tool-heavy tasks.
two months ago, @sama posted on X:
nailed it 👏👏
The “more smarts per token” positioning is interesting. In practice, where have you seen the biggest efficiency gains—long reasoning tasks, coding, or everyday chat?
Programmatic Tool Calling plus explicit prompt caching is the real headline here for anyone running agentic workflows at volume. That's a meaningful cost and latency lever, not just a spec bump. Curious how Sol/Terra/Luna routing works in practice: automatic based on task complexity, or manual per-call?
Tried it for a quick prototype last week and was surprised how clean the API docs are now. Getting a basic text generation setup running took maybe ten minutes.
Product Hunt
Is the solar system naming convention around to stay? Or just for the 5.6 release?
Curious how the pricing scales for smaller teams just starting out with API access, especially compared to self-hosting open-weight models.