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Compare models

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. Aura-2DeepgramRemove
  3. Claude Fable 5.2AnthropicRemove
  4. Muse Spark OpenMetaRemove

4 is the maximum. Remove one to add another.

kimi-k3.1-pro vs aura-2 vs claude-fable-5.2 vs muse-spark-open
AttributeKimi K3.1 Prokimi-k3.1-proAura-2aura-2Claude Fable 5.2claude-fable-5.2Muse Spark Openmuse-spark-open
Pricing
Input$2.00 / 1M— Not priced per input token$8.00 / 1M$1.25 / 1M
Output$10.00 / 1M— Not priced per output token$40.00 / 1M$4.25 / 1M
Cache Write (5m)$2.00 / 1MNot applicable$10.00 / 1M$1.25 / 1M
Cache Write (1h)$2.00 / 1MNot applicable$16.00 / 1M$1.25 / 1M
Cache Read$2.00 / 1MNot applicable$0.20 / 1M$1.25 / 1M
Web Search$0 / 1M$0 / 1M$0 / 1M$0 / 1M
Context
Max context1MN/A1M1M
Max outputN/AN/AN/AN/A
Capabilities
VisionYesNoYesYes
Function CallingYesNoYesYes
JSON ModeYesNoYesYes
StreamingYesNoYesYes
Catalogue
ProviderMoonShot AIDeepgramAnthropicMeta
Categorychatvoicechatchat
Charge typePay As You GoPay As You GoPay As You GoPay As You Go
Released—2026-07-16——
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.Deepgram Aura-2 text-to-speech for real-time voice applications. Billed per input character.Claude Fable 5.2 is Anthropic's most capable model for advanced technical work and open-ended problem solving, delivering significant improvements in coding, reasoning, and vision over Fable 5.1. It excels at exceptionally complex tasks, including large-scale software migrations, electronic system design, and advanced scientific and mathematical research. With up to 30% faster output generation, clearer communication, and always-on adaptive extended thinking, Fable 5.2 supports configurable reasoning effort from low to max (default high), with thinking preserved across turns. Designed for frontier engineering, scientific discovery, and ambitious long-horizon agentic workflows, it complements Opus 5.5 as a specialized option for the most demanding technical challenges.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.