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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. S2 ProFish AudioRemove
  2. S1Fish AudioRemove
  3. Voxtral Mini 3B 2507Mistral AIRemove
  4. GPT-6 Luna ProOpenAIRemove

4 is the maximum. Remove one to add another.

s2-pro vs s1 vs voxtral-mini-3b-2507 vs gpt-6-luna-pro
AttributeS2 Pros2-proS1s1Voxtral Mini 3B 2507voxtral-mini-3b-2507GPT-6 Luna Progpt-6-luna-pro
Pricing
Input$0 / 1M$0 / 1M$0 / 1M$0.10 / 1M
Output$0 / 1M$0 / 1M$0 / 1M$0.50 / 1M
Cache Write (5m)Not applicableNot applicableNot applicable$0.10 / 1M
Cache Write (1h)Not applicableNot applicableNot applicable$0.10 / 1M
Cache ReadNot applicableNot applicableNot applicable$0.10 / 1M
Web Search$0 / 1M$0 / 1M$0 / 1M$0 / 1M
Context
Max contextN/AN/AN/A1.1M
Max outputN/AN/AN/AN/A
Capabilities
VisionNoNoNoYes
Function CallingNoNoNoYes
JSON ModeNoNoNoYes
StreamingNoNoNoYes
Catalogue
ProviderFish AudioFish AudioMistral AIOpenAI
Categoryvoicevoicevoicechat
Charge typePay As You GoPay As You GoPay As You GoPay As You Go
Released2026-07-292026-07-292026-08-13—
Description
SummaryFish Audio S2 Pro text-to-speech. Billed per UTF-8 byte of input text.Fish Audio S1 text-to-speech. Billed per UTF-8 byte of input text.Mistral AI Voxtral Mini (3B) 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.