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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. GPT-6 AstraOpenAIRemove
  3. Gemini 3.5 TranscribeGoogleRemove
kimi-k3.1-pro vs gpt-6-astra vs gemini-3.5-transcribe
AttributeKimi K3.1 Prokimi-k3.1-proGPT-6 Astragpt-6-astraGemini 3.5 Transcribegemini-3.5-transcribe
Pricing
Input$2.00 / 1M$10.00 / 1M— Not priced per input token
Output$10.00 / 1M$50.00 / 1M— Not priced per output token
Cache Write (5m)$2.00 / 1M$10.00 / 1MNot applicable
Cache Write (1h)$2.00 / 1M$10.00 / 1MNot applicable
Cache Read$2.00 / 1M$10.00 / 1MNot applicable
Web Search$0 / 1M$0 / 1M$0 / 1M
Context
Max context1M1M98.3K
Max outputN/AN/AN/A
Capabilities
VisionYesYesYes
Function CallingYesYesYes
JSON ModeYesYesNo
StreamingYesYesNo
Catalogue
ProviderMoonShot AIOpenAIGoogle
Categorychatchatvoice
Charge typePay As You GoPay As You GoPay As You Go
Released——2026-09-25
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.GPT-6 Astra is OpenAI's flagship model for demanding end-to-end professional work, designed for advanced analysis, software engineering, deep research, scientific tasks, and document creation. It is particularly strong in long-horizon agentic workflows, including tasks that require sustained reasoning, tool orchestration, and computer and browser use, making it well suited for complex autonomous workflows and production-grade knowledge work.Google Gemini 3.5 Transcribe speech-to-text. Billed per input and output token.