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.

Perceptron Mk1.5Perceptron Remove
Gemini 3.5 TranscribeGoogle Remove
Claude Opus 5.5Anthropic Remove
Grok STT 1.0xAI Remove

4 is the maximum. Remove one to add another.

perceptron-mk1.5 vs gemini-3.5-transcribe vs claude-opus-5.5 vs grok-stt-1.0
Attribute	Perceptron Mk1.5perceptron-mk1.5	Gemini 3.5 Transcribegemini-3.5-transcribe	Claude Opus 5.5claude-opus-5.5	Grok STT 1.0grok-stt-1.0
Pricing
Input	$0.15 / 1M	$0 / 1M	$4.00 / 1M	$0 / 1M
Output	$1.50 / 1M	$0 / 1M	$20.00 / 1M	$0 / 1M
Cache Write (5m)	$0.15 / 1M	Not applicable	$5.00 / 1M	Not applicable
Cache Write (1h)	$0.15 / 1M	Not applicable	$8.00 / 1M	Not applicable
Cache Read	$0.15 / 1M	Not applicable	$0.40 / 1M	Not applicable
Web Search	$0 / 1M	$0 / 1M	$0 / 1M	$0 / 1M
Context
Max context	36.9K	98.3K	1M	N/A
Max output	N/A	N/A	N/A	N/A
Capabilities
Vision	No	Yes	Yes	No
Function Calling	No	Yes	Yes	No
JSON Mode	No	No	Yes	No
Streaming	Yes	No	Yes	No
Catalogue
Provider	Perceptron	Google	Anthropic	xAI
Category	chat	voice	chat	voice
Charge type	Pay As You Go	Pay As You Go	Pay As You Go	Pay As You Go
Released	2026-09-25	2026-09-25	—	2026-07-23
Description
Summary	Perceptron Mk1.5 chat model that accepts audio input. Audio and text input are billed per token.	Google Gemini 3.5 Transcribe speech-to-text. Billed per input and output token.	Claude Opus 5.5 is Anthropic's flagship model for advanced reasoning, coding, and long-horizon agentic workflows, succeeding Opus 5. It excels at multi-step changes across large codebases, code review and bug detection, financial and scientific analysis, and understanding dense charts, diagrams, and screenshots, with stronger grounding when reporting figures and citing sources. Compared with Opus 5, it completes comparable tasks with fewer steps and lower token usage while providing clearer, more concise progress reporting. With adaptive thinking and configurable effort levels, Opus 5.5 can balance reasoning depth, latency, and cost, making it well suited for both demanding autonomous workflows and latency-sensitive professional tasks.	xAI Grok STT 1.0 speech-to-text. Billed per second of audio.