Artificial Analysis Intelligence Index v5.0 came out two days ago. Not only did Terminal-Bench-Science make its debut in the index (15% o...

Artificial Analysis Intelligence Index v5.0 came out two days ago. Not only did Terminal-Bench-Science make its debut in the index (15% of the total index), but the entire “Science” category was also up-weighted from 20% to 25%.

Scientific research is more important than ever, but researchers aren’t always using the most intelligent models to power their research agents. Some interesting trends:

- Anthropic and OpenAI models still dominate the bulk of usage, making up the 6 of the 7 most popular models

- Deepseek V4.1 Flash is the most popular open and Chinese model by a wide margin. Its relatively cheap intelligence is quite popular among researchers.

- GPT-6 Luna’s usage punches furthest above its intelligence score while Haiku 5.5 is most underused for its intelligence

- Despite recent splashes, Google has yet to make meaningful inroads with its latest Gemini 4 models. It would probably help to make the models usable on launch day instead of making researchers wait 2 weeks.