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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. Universal-3.5 ProAssemblyAIRemove
  3. Gemini 3.7 FlashGoogleRemove
kimi-k3.1-pro vs universal-3-5-pro vs gemini-3.7-flash
AttributeKimi K3.1 Prokimi-k3.1-proUniversal-3.5 Prouniversal-3-5-proGemini 3.7 Flashgemini-3.7-flash
Pricing
Input$2.00 / 1M— Not priced per input token$0.375 / 1M
Output$10.00 / 1M— Not priced per output token$1.88 / 1M
Cache Write (5m)$2.00 / 1MNot applicable$0.375 / 1M
Cache Write (1h)$2.00 / 1MNot applicable$0.375 / 1M
Cache Read$2.00 / 1MNot applicable$0.375 / 1M
Web Search$0 / 1M$0 / 1M$0 / 1M
Context
Max context1MN/A1M
Max outputN/AN/AN/A
Capabilities
VisionYesNoYes
Function CallingYesNoYes
JSON ModeYesNoYes
StreamingYesNoYes
Catalogue
ProviderMoonShot AIAssemblyAIGoogle
Categorychatvoicechat
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.AssemblyAI Universal-3.5 Pro speech-to-text. Billed per second of audio.Gemini 3.7 Flash is Google's fast multimodal model designed for agentic workflows, coding, and complex multi-step reasoning. It combines responsive inference with reliable problem-solving capabilities, making it well suited for interactive and production-scale applications. Optimized for speed and dependable multi-step execution, Gemini 3.7 Flash is a strong choice for coding assistants, autonomous agents, and high-throughput workflows that require both low latency and capable reasoning.