Artificial Analysis weighted the Intelligence Index Version 5 equally across four categories: knowledge work, coding, science, and general capability

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The gap between the top open-weights AI model and the top United States proprietary AI model widened from 3 points to 12 points on Artificial Analysis Intelligence Index Version 5

Artificial Analysis removed long-context reasoning benchmark AA-LCR from the Intelligence Index Version 5

Kimi 3.1 Pro is the top-ranked open-weights model on Artificial Analysis Intelligence Index Version 5 with a score of 46

Google's Gemini 4 Carbon gained 8 points on Terminal Bench 4.0 and 6 points on Frontier Suite compared to Gemini 4 Argon

Claude Haiku 5.5 scored 36 points on the Artificial Analysis Intelligence Index Version 5

Google's Gemini 4 Carbon scored 59 points on the Artificial Analysis Intelligence Index Version 5, ranking in first place ahead of Opus 5.5

Google's Gemini 4 Carbon recorded a 12-point increase on Exploit Gym and a 3-point increase on the CWE Benchmark compared to Gemini 4 Argon

Artificial Analysis added Frontier Code 2.0, a private benchmark evaluating real-world coding pull requests, to the Intelligence Index Version 5

Google's Gemini 4 Carbon reached the top of the leaderboard on six of eight key benchmarks, scoring ahead of GPT-6 Astra and Opus 5.5

Kimi 3.1 Pro scored 34% on Terminal Bench Science, while GPT-6 Astra scored 63%

Artificial Analysis upgraded its Humanity's Last Exam benchmark to the HLE Diamond evaluation in the Intelligence Index Version 5

Anthropic's Sonnet 5.5 dropped from second to fourth place on the Artificial Analysis Intelligence Index Version 5

A majority of the benchmark evaluations used in Artificial Analysis Intelligence Index Version 5 are constructed using private datasets

Google's Gemini 4 Carbon tied for second place with Sonnet 5.5 on the Artificial Analysis Coding Index, scoring 3 points behind Opus 5.5

DeepSeek-V4.1 Flash and GLM-5.3 scored 32 points on Artificial Analysis Intelligence Index Version 5

GPT-6.1 Tera placed fifth on the Artificial Analysis Intelligence Index Version 5

Google's Gemini 4 Carbon improved by 7 points on OSWorld and 8 points on Humanity's Last Exam compared to Gemini 4 Argon

GPT-6 Astra scored 57 points on Artificial Analysis Intelligence Index Version 5, moving into second place

On Artificial Analysis Intelligence Index Version 5, Opus 5.5 scored 58 points

Kimi 3.1 Pro scored 67% on Terminal Bench 4.0, ranking higher than all competing models on that evaluation