Three models, three price points, one question: how much quality do you lose by going cheap?
The numbers
| MiniMax M2.7 | Claude Opus 4.6 | DeepSeek Chat | |
|---|---|---|---|
| Input price | $0.30/1M | $15.00/1M | $0.27/1M |
| Output price | $1.20/1M | $75.00/1M | $1.10/1M |
| Speed | 100 tok/s | 50 tok/s | 60 tok/s |
| SWE-Pro | 56.22% | 57.3% | ~54% |
| Context | 200K | 200K | 128K |
| Params | 230B MoE (10B active) | Unknown | 671B MoE (37B active) |
| Monthly cost (3hr/day) | ~$5 | ~$150 | ~$4 |
Quality comparison
Complex refactoring: Claude Opus wins. It produces the cleanest, most thoughtful code. M2.7 is close (~90%) but occasionally misses edge cases that Opus catches.
Routine coding: M2.7 and DeepSeek are both good enough. The 10% quality gap vs Opus is invisible for standard feature implementation, bug fixes, and test writing.
Speed: M2.7 wins at 100 tok/s. Noticeably faster than both Claude (50) and DeepSeek (60). For interactive coding, this matters.
Long sessions: M2.7’s self-evolving capability helps it maintain coherence over longer tasks. DeepSeek can drift. Claude is the most consistent.
The smart approach
Use all three with model routing:
- M2.7 or DeepSeek for routine work ($0.30/1M) — 80% of your tasks
- Claude Opus for hard problems ($15/1M) — 20% of your tasks
This gives you 95% of the “Claude for everything” experience at 20% of the cost. See our cheapest AI coding setup guide.
M2.7 vs DeepSeek specifically
These two are the closest competitors:
| M2.7 | DeepSeek Chat | |
|---|---|---|
| Price | $0.30/1M | $0.27/1M |
| Speed | 100 tok/s | 60 tok/s |
| SWE-Pro | 56.22% | ~54% |
| Self-evolving | ✅ | ❌ |
| Reasoning model | Built-in | Separate (Reasoner) |
M2.7 is slightly more expensive but faster and scores higher. DeepSeek has a separate Reasoner model for complex tasks. For most developers, the difference is negligible — pick whichever is available on your preferred platform.
Both are available on OpenRouter and work with Aider.
Related: MiniMax M2.7 Complete Guide · How to Reduce LLM API Costs · When to Use Small vs Frontier Models