GPT-5.6 Sol vs MiniMax M2.1

Choose GPT-5.6 Sol if you want hard coding and research tasks for teams in the OpenAI ecosystem. Choose MiniMax M2.1 if you want tool-heavy personal and autonomous agents on a budget.

In our editorial scoring, GPT-5.6 Sol leads in 3 of five dimensions (output quality, agentic ability and reliability), while MiniMax M2.1 leads in 2. On price, GPT-5.6 Sol runs about $13 per 1M tokens (blended) and is proprietary; MiniMax M2.1 is about $0.57 and open-weight.

The model is half the story — the agent is the other half

The model picks the moves; the agent runs the loop, the tools, and the guardrails. Once you've chosen a model, see which agent gets the most out of it.