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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. MAI-Transcribe 2MicrosoftRemove
  4. GPT-6 Luna ProOpenAIRemove

4 is the maximum. Remove one to add another.

perceptron-mk1.5 vs s1 vs mai-transcribe-2 vs gpt-6-luna-pro
AttributePerceptron Mk1.5perceptron-mk1.5S1s1MAI-Transcribe 2mai-transcribe-2GPT-6 Luna Progpt-6-luna-pro
Pricing
Input$0.15 / 1M$0 / 1M$0 / 1M$0.10 / 1M
Output$1.50 / 1M$0 / 1M$0 / 1M$0.50 / 1M
Cache Write (5m)$0.15 / 1MNot applicableNot applicable$0.10 / 1M
Cache Write (1h)$0.15 / 1MNot applicableNot applicable$0.10 / 1M
Cache Read$0.15 / 1MNot applicableNot applicable$0.10 / 1M
Web Search$0 / 1M$0 / 1M$0 / 1M$0 / 1M
Context
Max context36.9KN/AN/A1.1M
Max outputN/AN/AN/AN/A
Capabilities
VisionNoNoNoYes
Function CallingNoNoNoYes
JSON ModeNoNoNoYes
StreamingYesNoNoYes
Catalogue
ProviderPerceptronFish AudioMicrosoftOpenAI
Categorychatvoicevoicechat
Charge typePay As You GoPay As You GoPay As You GoPay As You Go
Released2026-09-252026-07-292026-09-03—
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.Microsoft MAI-Transcribe-2 speech-to-text. Billed per second of audio.GPT-6 Luna Pro uses the same underlying model as GPT-6 Luna, but runs with reasoning.mode set to pro for higher-quality responses on complex tasks. It combines Luna's speed and cost efficiency with deeper reasoning and more reliable multi-step execution, making it well suited for advanced coding, computer use, and agentic workflows where higher solution quality is needed without moving to a larger GPT-6 tier.