Uploaded July 2026 | Updated September 2026, 3 weeks ago
In this video we answer the question - Is Sonnet 5 Any Good at Agentic Coding? We'll also compare it to Opus 4.8 on a real coding task.
🚀 My AI coding courses, live Q&A, weekly builder challenges, direct access to me, and a serious builder community: skool.com/agentic-labs
🎁 Get the free 7-Day AI Builder Challenge + resources for this video: skool.com/leonvanzyl
In this video, I put Claude Sonnet 5 head to head against Claude Opus 4.8 by asking each model (running in Claude Code's Ultra Code mode) to build a full Age of Empires clone in the browser. Here is the twist: before building the game, each model first has to build its own game engine and its own developer tools, like an asset viewer, an animation preview, and a map editor, to work around agent limitations like browser frame rates. You'll learn how to get coding agents to build tools around their own weaknesses, how Sonnet 5 and Opus 4.8 stack up on a real agentic coding task, and why this tool building approach produces far better results using Claude Code.
===========================
Resources Mentioned
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📦 Source code, prompts, workflows + peer discussion:
skool.com/leonvanzyl
===========================
Watch This Next
===========================
▶️ Claude Code Pro Workflow: youtu.be/zVZotTk6ZWU
===========================
Go Deeper with Agentic Labs
===========================
🧪 AI coding courses, live Q&A, weekly builder challenges, direct access to me, and a serious builder community:
skool.com/agentic-labs
===========================
Subscribe / Connect
===========================
Subscribe for practical AI building, agentic coding, automation, and real app builds:
youtube.com/@leonvanzyl?sub_confirmation=1
Business & sponsorship enquiries:
leon@cognaitiv.ai
===========================
Question
===========================
What are you building with Claude Code right now, and are you team Sonnet 5 or team Opus 4.8?
⏱️ Chapters
0:00 Sonnet 5 Vs Opus 4.8
0:37 The Game Engine Twist
0:52 Why Agents Build Tools
2:44 The Sonnet 5 Prompt
3:37 Running Both Models
4:31 Sonnet 5 Gameplay
5:22 Sonnet 5 Toolset
6:31 Opus 4.8 Gameplay
7:37 Opus 4.8 Toolset
8:02 The Verdict
8:28 Join Agentic Labs
===========================
About This Video
===========================
In this video, I show you how to get a coding agent to build its own game engine and tooling and then build a complete browser game, using Claude Code with Sonnet 5 and Opus 4.8. This tutorial is for developers, AI builders, and serious no-code/low-code builders who want practical workflows for building real apps, AI agents, automations, and coding systems.
On this channel, I share practical AI engineering and agentic coding workflows using tools like Claude Code, OpenCode, Codex, Cursor, n8n, Next.js, MCP, local AI models, and modern AI development workflows.
#agenticcoding #claudecode #aicoding
In this video we answer the question - Is Sonnet 5 Any Good at Agentic Coding? We'll also compare it to Opus 4.8 on a real coding task.
🚀 My AI coding courses, live Q&A, weekly builder challenges, direct access to me, and a serious builder community: skool.com/agentic-labs
🎁 Get the free 7-Day AI Builder Challenge + resources for this video: skool.com/leonvanzyl
In this video, I put Claude Sonnet 5 head to head against Claude Opus 4.8 by asking each model (running in Claude Code's Ultra Code mode) to build a full Age of Empires clone in the browser. Here is the twist: before building the game, each model first has to build its own game engine and its own developer tools, like an asset viewer, an animation preview, and a map editor, to work around agent limitations like browser frame rates. You'll learn how to get coding agents to build tools around their own weaknesses, how Sonnet 5 and Opus 4.8 stack up on a real agentic coding task, and why this tool building approach produces far better results using Claude Code.
===========================
Resources Mentioned
===========================
📦 Source code, prompts, workflows + peer discussion:
skool.com/leonvanzyl
===========================
Watch This Next
===========================
▶️ Claude Code Pro Workflow: youtu.be/zVZotTk6ZWU
===========================
Go Deeper with Agentic Labs
===========================
🧪 AI coding courses, live Q&A, weekly builder challenges, direct access to me, and a serious builder community:
skool.com/agentic-labs
===========================
Subscribe / Connect
===========================
Subscribe for practical AI building, agentic coding, automation, and real app builds:
youtube.com/@leonvanzyl?sub_confirmation=1
Business & sponsorship enquiries:
leon@cognaitiv.ai
===========================
Question
===========================
What are you building with Claude Code right now, and are you team Sonnet 5 or team Opus 4.8?
⏱️ Chapters
0:00 Sonnet 5 Vs Opus 4.8
0:37 The Game Engine Twist
0:52 Why Agents Build Tools
2:44 The Sonnet 5 Prompt
3:37 Running Both Models
4:31 Sonnet 5 Gameplay
5:22 Sonnet 5 Toolset
6:31 Opus 4.8 Gameplay
7:37 Opus 4.8 Toolset
8:02 The Verdict
8:28 Join Agentic Labs
===========================
About This Video
===========================
In this video, I show you how to get a coding agent to build its own game engine and tooling and then build a complete browser game, using Claude Code with Sonnet 5 and Opus 4.8. This tutorial is for developers, AI builders, and serious no-code/low-code builders who want practical workflows for building real apps, AI agents, automations, and coding systems.
On this channel, I share practical AI engineering and agentic coding workflows using tools like Claude Code, OpenCode, Codex, Cursor, n8n, Next.js, MCP, local AI models, and modern AI development workflows.
#agenticcoding #claudecode #aicoding
