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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.

Kimi K3.1 ProMoonShot AI Remove
GPT TranscribeOpenAI Remove
Muse Spark OpenMeta Remove

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DeepSeek V4.1 Flash 1017
Nemotron 3.5 Super VL (Free)
Nemotron 3.5 Super VL
Gemini 4 Argon
Muse Wonder
Gemini 3.1 Flash Lite Image (Google Vertex AI)
Gemini 3.1 Flash Lite Image (Google AI Studio)Enterprise & partner access
Gemini 3.1 Flash Image (Google Vertex AI)Enterprise & partner access

kimi-k3.1-pro vs gpt-transcribe vs muse-spark-open
Attribute	Kimi K3.1 Prokimi-k3.1-pro	GPT Transcribegpt-transcribe	Muse Spark Openmuse-spark-open
Pricing
Input	$2.00 / 1M	— Not priced per input token	$1.25 / 1M
Output	$10.00 / 1M	— Not priced per output token	$4.25 / 1M
Cache Write (5m)	$2.00 / 1M	Not applicable	$1.25 / 1M
Cache Write (1h)	$2.00 / 1M	Not applicable	$1.25 / 1M
Cache Read	$2.00 / 1M	Not applicable	$1.25 / 1M
Web Search	$0 / 1M	$0 / 1M	$0 / 1M
Context
Max context	1M	N/A	1M
Max output	N/A	N/A	N/A
Capabilities
Vision	Yes	No	Yes
Function Calling	Yes	No	Yes
JSON Mode	Yes	No	Yes
Streaming	Yes	No	Yes
Catalogue
Provider	MoonShot AI	OpenAI	Meta
Category	chat	voice	chat
Charge type	Pay As You Go	Pay As You Go	Pay As You Go
Released	—	2026-08-05	—
Description
Summary	Kimi 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.	OpenAI GPT Transcribe speech-to-text. Billed per second of audio.	Muse Spark Open is an open-weight, coding-optimized model designed for agentic software engineering workflows. It delivers strong first-attempt accuracy, reliable tool calling, and deep codebase understanding, enabling effective development across real-world repositories. Optimized for autonomous coding agents, complex code navigation, and tool-driven development, Muse Spark Open is well suited for software engineering automation, debugging, code generation, and multi-step coding workflows where accuracy and reliable execution are essential.