Meet GPT-5.6

From the creator

Watch GPT-5.6 build a playable, celestial-themed card game in Codex from a short, open-ended prompt. In this demo, GPT-5.6 designs the core mechanics, generates custom artwork, adds levels and a soundtrack, tests the gameplay, and keeps improving the build. Along the way, see how programmatic tool calling, Max Reasoning, and subagents help it take on longer-running work - using a sandbox to process tool results, split work in parallel, and bring everything back into one polished game. Check out the game here: https://asterism.openai.chatgpt.site/ Chapters 00:00 Introducing GPT-5.6 00:17 Building a game in Codex 00:52 Programmatic tool calling 01:07 Reasoning and subagents 01:35 GPT-5.6 in the API

Stop watching · start building
Matched to AI Coding

Makers residency 4th edition

Your idea can be anything. At our last workshops, people built plant-based nutrition businesses, a way to measure planetary resilience, crochet headwear and a way to connect lonely people living in the same building. An asset manager went on to raise an additional £25M on their fund within nine months. The fourth workshop is a full day at KOKO with Nick Sarafa, learning to build with Claude Code. Bring the thing you keep meaning to start. We’ll bring the pizza.

◆ Fri 13 Nov 2026 ◆ KOKO, London
Makers residency 4th edition
Live event
Makers residency 4th edition
Fri 13 Nov 2026

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