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Apertis

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. GPT-6 Luna ProOpenAIRemove
  2. Transcribe 1 ProFish AudioRemove
  3. Perceptron Mk1.5PerceptronRemove
  4. S1Fish AudioRemove

4 is the maximum. Remove one to add another.

gpt-6-luna-pro vs transcribe-1-pro vs perceptron-mk1.5 vs s1
AttributeGPT-6 Luna Progpt-6-luna-proTranscribe 1 Protranscribe-1-proPerceptron Mk1.5perceptron-mk1.5S1s1
Pricing
Input$0.10 / 1M$0 / 1M$0.15 / 1M$0 / 1M
Output$0.50 / 1M$0 / 1M$1.50 / 1M$0 / 1M
Cache Write (5m)$0.10 / 1MNot applicable$0.15 / 1MNot applicable
Cache Write (1h)$0.10 / 1MNot applicable$0.15 / 1MNot applicable
Cache Read$0.10 / 1MNot applicable$0.15 / 1MNot applicable
Web Search$0 / 1M$0 / 1M$0 / 1M$0 / 1M
Context
Max context1.1MN/A36.9KN/A
Max outputN/AN/AN/AN/A
Capabilities
VisionYesNoNoNo
Function CallingYesNoNoNo
JSON ModeYesNoNoNo
StreamingYesNoYesNo
Catalogue
ProviderOpenAIFish AudioPerceptronFish Audio
Categorychatvoicechatvoice
Charge typePay As You GoPay As You GoPay As You GoPay As You Go
Released—2026-09-242026-09-252026-07-29
Description
SummaryGPT-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.Fish Audio Transcribe 1 Pro speech-to-text with speaker labels; transcripts include speaker tags such as <|speaker:0|>. Billed per second of audio.Perceptron 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.