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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. Transcribe 1Fish AudioRemove
  2. S2 ProFish AudioRemove
  3. Claude Sonnet 5.5AnthropicRemove
  4. Perceptron Mk1.5PerceptronRemove

4 is the maximum. Remove one to add another.

transcribe-1 vs s2-pro vs claude-sonnet-5.5 vs perceptron-mk1.5
AttributeTranscribe 1transcribe-1S2 Pros2-proClaude Sonnet 5.5claude-sonnet-5.5Perceptron Mk1.5perceptron-mk1.5
Pricing
Input$0 / 1M$0 / 1M$2.00 / 1M$0.15 / 1M
Output$0 / 1M$0 / 1M$10.00 / 1M$1.50 / 1M
Cache Write (5m)Not applicableNot applicable$2.50 / 1M$0.15 / 1M
Cache Write (1h)Not applicableNot applicable$4.00 / 1M$0.15 / 1M
Cache ReadNot applicableNot applicable$0.20 / 1M$0.15 / 1M
Web Search$0 / 1M$0 / 1M$0 / 1M$0 / 1M
Context
Max contextN/AN/A1M36.9K
Max outputN/AN/AN/AN/A
Capabilities
VisionNoNoYesNo
Function CallingNoNoYesNo
JSON ModeNoNoYesNo
StreamingNoNoYesYes
Catalogue
ProviderFish AudioFish AudioAnthropicPerceptron
Categoryvoicevoicechatchat
Charge typePay As You GoPay As You GoPay As You GoPay As You Go
Released2026-07-292026-07-29—2026-09-25
Description
SummaryFish Audio Transcribe 1 speech-to-text. Billed per second of audio.Fish Audio S2 Pro text-to-speech. Billed per UTF-8 byte of input text.Claude Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, serving as a direct upgrade to Sonnet 5. It excels at feature development, bug fixing, and creating polished documents, presentations, and spreadsheets, while offering clearer writing and communication than its predecessor.Perceptron Mk1.5 chat model that accepts audio input. Audio and text input are billed per token.