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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. Perceptron Mk1.5PerceptronRemove
  2. S1Fish AudioRemove
  3. Muse Spark 1.3MetaRemove
  4. GPT-6 SolOpenAIRemove

4 is the maximum. Remove one to add another.

perceptron-mk1.5 vs s1 vs muse-spark-1.3 vs gpt-6-sol
AttributePerceptron Mk1.5perceptron-mk1.5S1s1Muse Spark 1.3muse-spark-1.3GPT-6 Solgpt-6-sol
Pricing
Input$0.15 / 1M$0 / 1M$1.25 / 1M$2.00 / 1M
Output$1.50 / 1M$0 / 1M$4.25 / 1M$10.00 / 1M
Cache Write (5m)$0.15 / 1MNot applicable$1.25 / 1M$2.00 / 1M
Cache Write (1h)$0.15 / 1MNot applicable$1.25 / 1M$2.00 / 1M
Cache Read$0.15 / 1MNot applicable$1.25 / 1M$2.00 / 1M
Web Search$0 / 1M$0 / 1M$0 / 1M$0 / 1M
Context
Max context36.9KN/A1M1.1M
Max outputN/AN/AN/AN/A
Capabilities
VisionNoNoYesYes
Function CallingNoNoYesYes
JSON ModeNoNoYesYes
StreamingYesNoYesYes
Catalogue
ProviderPerceptronFish AudioMetaOpenAI
Categorychatvoicechatchat
Charge typePay As You GoPay As You GoPay As You GoPay As You Go
Released2026-09-252026-07-29——
Description
SummaryPerceptron Mk1.5 chat model that accepts audio input. Audio and text input are billed per token.Fish Audio S1 text-to-speech. Billed per UTF-8 byte of input text.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.GPT-6 Sol is OpenAI's cost-efficient high-end model in the GPT-6 series, positioned between the flagship GPT-6 Astra and the fast GPT-6 Luna tier. It is designed for professional knowledge work, agentic coding, business workflow automation, and computer-use tasks, with particular strength in long-horizon software engineering across real-world codebases. GPT-6 Sol approaches Astra-level factual reliability at a significantly lower cost, while sharing its clear and concise communication style. This balance of capability, reliability, and efficiency makes it well suited for production agents, complex engineering workflows, and scalable professional applications