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Put up to 4 models beside each other — token prices, context windows, capabilities and provider, from the same catalogue the model pages read.

  1. Kimi K3.1 ProMoonShot AIRemove
  2. Grok 4.6xAIRemove
  3. Universal-3.5 ProAssemblyAIRemove
kimi-k3.1-pro vs grok-4.6 vs universal-3-5-pro
AttributeKimi K3.1 Prokimi-k3.1-proGrok 4.6grok-4.6Universal-3.5 Prouniversal-3-5-pro
Pricing
Input$2.00 / 1M$2.00 / 1M— Not priced per input token
Output$10.00 / 1M$6.00 / 1M— Not priced per output token
Cache Write (5m)$2.00 / 1M$2.00 / 1MNot applicable
Cache Write (1h)$2.00 / 1M$2.00 / 1MNot applicable
Cache Read$2.00 / 1M$2.00 / 1MNot applicable
Web Search$0 / 1M$0 / 1M$0 / 1M
Context
Max context1M500KN/A
Max outputN/AN/AN/A
Capabilities
VisionYesYesNo
Function CallingYesYesNo
JSON ModeYesYesNo
StreamingYesYesNo
Catalogue
ProviderMoonShot AIxAIAssemblyAI
Categorychatchatvoice
Charge typePay As You GoPay As You GoPay As You Go
Released——2026-09-22
Description
SummaryKimi K3.1 Pro is Moonshot AI's flagship open-weight multimodal reasoning model, building on Kimi K3 with enhanced post-training for advanced reasoning and autonomous task execution. It features a 1M-token context window and native image and video understanding, enabling complex, long-context multimodal workflows. Optimized for long-horizon coding, 3D creation, financial research, and end-to-end agentic knowledge work, Kimi K3.1 Pro is well suited for autonomous software engineering, multimodal analysis, and complex professional workflows that require sustained reasoning and reliable execution.Grok 4.6 is SpaceXAI's smartest frontier model, delivering top-tier performance across coding, knowledge work, and STEM reasoning. It is designed for demanding technical and professional workloads that require strong problem solving, accurate instruction following, and reliable execution. Optimized for software engineering, scientific analysis, and complex knowledge tasks, Grok 4.6 is well suited for advanced coding, research, and agentic workflows where high capability and reasoning quality are critical.AssemblyAI Universal-3.5 Pro speech-to-text. Billed per second of audio.