190 GPQA Diamond questions. Our own runs; half-informed model-rating tuning. Held-out scores were within ~2 points of the full-set charts.
Routing also lost: Sonnet 5.5 beat Artemis Quality-first on accuracy and cost.
Results: https://t.co/dx60c8W3lf
“Use the strongest model” should earn its place.
Our GPQA run:
GPT-5.5: 92.6%, $5,740/100k
NuRoute Artemis Balanced: 88.9%, $137/100k
42× the cost for +3.7 accuracy points.
Half the questions informed tuning.
Would that gain justify the bill in your product?
Using the same LLM for every task is expensive engineering.
We built Artemis Task at https://t.co/BoSEMUBcv1 to change that.
On 426 held-out business prompts, our Quality-first router achieved:
→ 72.1% lower inference cost
→ 99.1% of GPT-5.5's quality
Model selection should happen per request, not per application.
https://t.co/CGptwCUh1N