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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. Aura-2DeepgramRemove
  2. GPT-6 Luna ProOpenAIRemove
  3. Perceptron Mk1.5PerceptronRemove
  4. S2 ProFish AudioRemove

4 is the maximum. Remove one to add another.

aura-2 vs gpt-6-luna-pro vs perceptron-mk1.5 vs s2-pro
AttributeAura-2aura-2GPT-6 Luna Progpt-6-luna-proPerceptron Mk1.5perceptron-mk1.5S2 Pros2-pro
Pricing
Input$0 / 1M$0.10 / 1M$0.15 / 1M$0 / 1M
Output$0 / 1M$0.50 / 1M$1.50 / 1M$0 / 1M
Cache Write (5m)Not applicable$0.10 / 1M$0.15 / 1MNot applicable
Cache Write (1h)Not applicable$0.10 / 1M$0.15 / 1MNot applicable
Cache ReadNot applicable$0.10 / 1M$0.15 / 1MNot applicable
Web Search$0 / 1M$0 / 1M$0 / 1M$0 / 1M
Context
Max contextN/A1.1M36.9KN/A
Max outputN/AN/AN/AN/A
Capabilities
VisionNoYesNoNo
Function CallingNoYesNoNo
JSON ModeNoYesNoNo
StreamingNoYesYesNo
Catalogue
ProviderDeepgramOpenAIPerceptronFish Audio
Categoryvoicechatchatvoice
Charge typePay As You GoPay As You GoPay As You GoPay As You Go
Released2026-07-16—2026-09-252026-07-29
Description
SummaryDeepgram Aura-2 text-to-speech for real-time voice applications. Billed per input character.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.Perceptron Mk1.5 chat model that accepts audio input. Audio and text input are billed per token.Fish Audio S2 Pro text-to-speech. Billed per UTF-8 byte of input text.