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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. inklingThinkingMachinesRemove
  2. Muse Spark 1.3MetaRemove
  3. Claude Fable 5.1AnthropicRemove
  4. GPT-6 Astra ProOpenAIRemove

4 is the maximum. Remove one to add another.

inkling vs muse-spark-1.3 vs claude-fable-5.1 vs gpt-6-astra-pro
AttributeinklinginklingMuse Spark 1.3muse-spark-1.3Claude Fable 5.1claude-fable-5.1GPT-6 Astra Progpt-6-astra-pro
Pricing
Input$0 / 1M$1.25 / 1M$10.00 / 1M$10.00 / 1M
Output$0 / 1M$4.25 / 1M$50.00 / 1M$50.00 / 1M
Cache Write$0 / 1M
Cache Read$0 / 1M$1.25 / 1M$1.00 / 1M$10.00 / 1M
Cache Write (5m)$1.25 / 1M$12.50 / 1M$10.00 / 1M
Cache Write (1h)$1.25 / 1M$20.00 / 1M$10.00 / 1M
Web Search$0 / 1M$0 / 1M$0 / 1M
Context
Max context1M1M1M1M
Max outputN/AN/AN/AN/A
Capabilities
VisionYesYesYesYes
Function CallingYesYesYesYes
JSON ModeYesYesYesYes
StreamingYesYesYesYes
Catalogue
ProviderThinkingMachinesMetaAnthropicOpenAI
Categorychatchatchatchat
Charge typeFreePay As You GoPay As You GoPay As You Go
Released
Description
SummaryInkling is a general-purpose multimodal autoregressive transformer model from Thinking Machines Lab, supporting text, image, and audio inputs with text output. It is designed for a wide range of applications, including reasoning, coding, multilingual understanding, and multimodal interaction. Optimized for agentic workflows, tool use, coding assistants, chatbots, retrieval-augmented generation (RAG), and instruction following, Inkling provides a versatile foundation for production AI systems requiring robust language and multimodal capabilities.Muse Spark 1.3 is Meta's multimodal reasoning model designed for long-running agentic, multi-agent, and coding workflows. It maintains context and information across extended tasks, enabling reliable execution in complex, multi-step environments. The model is optimized to resolve conflicting information, seek clarification or confirmation when necessary, and execute concisely, making it well suited for autonomous agents, collaborative multi-agent systems, and long-horizon software engineering workflows.Claude Fable 5.1 is an upgraded version of Fable 5, delivering broad improvements with particularly strong gains in agentic coding, long-running workflows, and professional knowledge work. It excels at large code refactors, front-end and visual code generation, financial analysis, and complex analytical tasks. Compared with Fable 5, it also produces more concise plans and summaries while maintaining strong performance across extended tasks, making it a natural upgrade for existing Fable workflows and a strong option alongside Opus 5 for reasoning-intensive applications.GPT-6 Astra Pro uses the same underlying model as GPT-6 Astra, but runs with reasoning.mode set to pro for higher-quality responses on complex tasks. Optimized for deeper reasoning, greater accuracy, and more reliable multi-step execution, it is well suited for demanding coding, analysis, and agentic workflows where solution quality takes priority over speed and cost.