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Artificial Analysis Intelligence Index

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EVENT TIMELINE

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MODELS · 1 SOURCE · The Decoder

Moonshot releases Kimi K3.1 Pro, climbs to #4 on Artificial Analysis index

Moonshot AI has released Kimi K3.1 Pro, a post‑trained update to Kimi K3 that scores 55 points on the Artificial Analysis Intelligence Index (an 11‑point gain), placing it fourth and three points behind top proprietary models such as Claude Opus 5.5. The model keeps 2.8 trillion parameters (104B active), a 1M‑token context window, ships a faster ‘Highspeed’ variant, cuts API token prices by ~33%, and the company says it plans to release model weights by November 4, 2026.

7.0

MODELS · 1 SOURCE · The Decoder

MiniMax releases M3.1 Flash reasoning model; open weights planned for Oct. 23

MiniMax has released M3.1 Flash, a reasoning model that scores 42 on the Artificial Analysis Intelligence Index (up 13 points from M3), supports up to 1 million-token context, and is claimed to run three times faster with lower cost per task (~$0.22). The model shows improvements on complex-reasoning and factual benchmarks (48% on "Humanity's Last Exam," 56% on AA-Omniscience) but reportedly has a high hallucination rate (93%); API pricing is published and MiniMax plans an open-weights release on October 23.

7.0

MODELS · 1 SOURCE · xAI

SpaceXAI launches Grok 4.5, a model optimized for coding and agentic tasks

SpaceXAI says it has released Grok 4.5, its newest model trained alongside Cursor and optimized for coding, agentic workflows, and knowledge work. The company reports training across tens of thousands of NVIDIA GB300 GPUs, claims roughly 2× token efficiency versus leading models, 80 TPS serving speed, and priced the model at $2 per million input tokens and $6 per million output tokens; Grok 4.5 is available in Grok Build, Cursor, and via the SpaceXAI console with limited free usage offered.

8.0