Artificial Analysis Intelligence Index v5: Gemini 4 Argon lands sixth at 50
The updated index adds FrontierCode 2.0 and Terminal-Bench-Science; Claude Opus 5.5 leads at 58, ahead of GPT-6 Astra (57) and GPT-6.1 Sol (55), with Gemini 4 Argon (high) next at 50.

Artificial Analysis Intelligence Index v5 is now live! > It includes 2 new benchmarks and 3 upgrades, and most of the Index is built on private datasets. > New benchmarks include FrontierCode 2.0 from Cognition and Terminal-Bench-Science. > Claude Opus 5.5 (max) leads at 58, ahead of GPT-6 Astra (max, 57) and GPT-6.1 Sol (max, 55): Anthropic and OpenAI hold the top five models. Gemini 4 Argon (high) is next at 50. Claude Code still remains in the lead (no surprise here), while we have quite an accurate distribution for the rest. A new chart also shows model release dates 👀
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