07/28/2026
Six major model releases in the last month alone. Keeping track of which one is best (and cheapest) for each task is now a job on its own.
We keep arriving at the same conclusion in these experiments: you don't need the most expensive model for every step of your workflow. So we tested whether Kilo Code's Auto Model router could act on that better than picking models by hand.
All three built the same working service, but Kilo's Auto Model built it for less than half the cost:
- Auto Model (frontier plan → efficient build): $1.26
- GPT-5.6 Sol everywhere: $2.90
- Claude Sonnet 5 everywhere: $2.47
Once a good plan exists, the model that builds it moves the cost far more than the result.
The pace of new model releases has made “which model should I use for this?” a real problem.