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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. Perceptron Mk1.5PerceptronRemove
  2. S1Fish AudioRemove
  3. Gemini 3.5 TranscribeGoogleRemove
  4. Claude Sonnet 5.5AnthropicRemove

4 is the maximum. Remove one to add another.

perceptron-mk1.5 vs s1 vs gemini-3.5-transcribe vs claude-sonnet-5.5
AttributePerceptron Mk1.5perceptron-mk1.5S1s1Gemini 3.5 Transcribegemini-3.5-transcribeClaude Sonnet 5.5claude-sonnet-5.5
Pricing
Input$0.15 / 1M$0 / 1M$0 / 1M$2.00 / 1M
Output$1.50 / 1M$0 / 1M$0 / 1M$10.00 / 1M
Cache Write (5m)$0.15 / 1MNot applicableNot applicable$2.50 / 1M
Cache Write (1h)$0.15 / 1MNot applicableNot applicable$4.00 / 1M
Cache Read$0.15 / 1MNot applicableNot applicable$0.20 / 1M
Web Search$0 / 1M$0 / 1M$0 / 1M$0 / 1M
Context
Max context36.9KN/A98.3K1M
Max outputN/AN/AN/AN/A
Capabilities
VisionNoNoYesYes
Function CallingNoNoYesYes
JSON ModeNoNoNoYes
StreamingYesNoNoYes
Catalogue
ProviderPerceptronFish AudioGoogleAnthropic
Categorychatvoicevoicechat
Charge typePay As You GoPay As You GoPay As You GoPay As You Go
Released2026-09-252026-07-292026-09-25—
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.Google Gemini 3.5 Transcribe speech-to-text. Billed per input and output token.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.