Tier A: Strong with clear operating rules.
MiniMax M3
Best when placed in the right coding harness.
Our take
MiniMax M3 is a major improvement, especially when run inside Claude Code with parallel instances for infrastructure and continuation work.
Best for
- Parallel coding agents
- Infrastructure work
- Continuation after planning
- Multimodal task support
Watch out
- Can overthink like GPT 5.5
- Performs worse in the wrong harness
- Benefits from a PRD before execution
Why it is ranked here
- The team used three simultaneous MiniMax M3 instances in Claude Code for company infrastructure work.
- The video says it is a huge improvement over MiniMax 2.7.
- The current workaround is to plan first, then feed the plan to MiniMax for execution.
Video evidence
NEW AI Model Tier List for Vibe Coding!
Takeaway: Run MiniMax M3 in a coding harness for best results.
The source video says the model shines in Claude Code and supports parallel infrastructure work.
Open source notes
