B Tier — Good but Inconsistent
These models can work, but output quality varies. You'll need to verify results more often.
| Model | Strength | Weakness |
|---|---|---|
| MiMo v2 Flash / Pro | High capability ceiling | Inconsistent output |
| DeepSeek V3 / R1 | Strong reasoning | Weak execution |
| Nemotron 3 Nano | Fast and lightweight | Limited reasoning |
| Trinity Large Preview | General purpose | Not coding-focused |
C Tier — Limited Use
| Model | Notes |
|---|---|
| Kimi K2.5 | Decent coding but needs hand-holding, struggles with ambiguity |
| MiniMax 2.7 | Slight improvement over 2.5, still limited for complex workflows |
| Smaller Qwen (7B–14B) | Fast inference but weak reasoning and poor code quality |
D Tier — Not Recommended
MiniMax 2.5 — weak reasoning, poor multi-step handling, superseded by 2.7. Very small models (<10B) — not suitable for coding, agents, or production. They hallucinate too frequently and lack reasoning depth for anything beyond trivial tasks.
Key Takeaways
- Free models are now genuinely usable for real development work
- Larger models still perform significantly better than small ones
- The main limitation is consistency, not raw capability
- A multi-model strategy outperforms relying on any single model
Recommended Setup
Instead of relying on a single model, I run a multi-model strategy:
| Role | Model | Use Case |
|---|---|---|
| Primary | Nemotron 3 Super | Handles most daily tasks |
| Coding | Qwen3 Coder 480B A35B | Repo-level refactoring, large codebases |
| Fallback | GPT-OSS 120B | When the primary struggles with a task |
| Paid upgrade | Qwen 3.6 Plus (not free) | Complex planning, long-context work |
This approach gives you redundancy and lets you match the model to the task. In practice, switching models based on the job produces better results than forcing one model to do everything. If you have budget for a paid model, Qwen 3.6 Plus is an excellent addition for reasoning-heavy tasks.
Conclusion
Free AI models are now production-ready. Use multiple models, test in real workflows, and choose based on task — not hype.
Sources
- NVIDIA Nemotron 3 Super Technical Report
- NVIDIA Nemotron Model Overview
- Artificial Analysis Benchmark
- Baseten Performance Breakdown
- HuggingFace Nemotron Model Card
- Qwen vs DeepSeek Benchmark Comparison
- Qwen vs DeepSeek (Artificial Analysis)
- DeepSeek vs Qwen Comparison (Galaxy)
- DeepSeek vs Qwen Benchmark (HumanEval / GSM8K)