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.

Grok STT 1.0xAI Remove
Gemini 3.5 TranscribeGoogle Remove
Perceptron Mk1.5Perceptron Remove
Muse Spark 1.3Meta Remove

4 is the maximum. Remove one to add another.

grok-stt-1.0 vs gemini-3.5-transcribe vs perceptron-mk1.5 vs muse-spark-1.3
Attribute	Grok STT 1.0grok-stt-1.0	Gemini 3.5 Transcribegemini-3.5-transcribe	Perceptron Mk1.5perceptron-mk1.5	Muse Spark 1.3muse-spark-1.3
Pricing
Input	$0 / 1M	$0 / 1M	$0.15 / 1M	$1.25 / 1M
Output	$0 / 1M	$0 / 1M	$1.50 / 1M	$4.25 / 1M
Cache Write (5m)	Not applicable	Not applicable	$0.15 / 1M	$1.25 / 1M
Cache Write (1h)	Not applicable	Not applicable	$0.15 / 1M	$1.25 / 1M
Cache Read	Not applicable	Not applicable	$0.15 / 1M	$1.25 / 1M
Web Search	$0 / 1M	$0 / 1M	$0 / 1M	$0 / 1M
Context
Max context	N/A	98.3K	36.9K	1M
Max output	N/A	N/A	N/A	N/A
Capabilities
Vision	No	Yes	No	Yes
Function Calling	No	Yes	No	Yes
JSON Mode	No	No	No	Yes
Streaming	No	No	Yes	Yes
Catalogue
Provider	xAI	Google	Perceptron	Meta
Category	voice	voice	chat	chat
Charge type	Pay As You Go	Pay As You Go	Pay As You Go	Pay As You Go
Released	2026-07-23	2026-09-25	2026-09-25	—
Description
Summary	xAI Grok STT 1.0 speech-to-text. Billed per second of audio.	Google Gemini 3.5 Transcribe speech-to-text. Billed per input and output token.	Perceptron Mk1.5 chat model that accepts audio input. Audio and text input are billed per token.	Muse Spark 1.3 is Meta's multimodal reasoning model designed for long-running agentic, multi-agent, and coding workflows. It maintains context and information across extended tasks, enabling reliable execution in complex, multi-step environments. The model is optimized to resolve conflicting information, seek clarification or confirmation when necessary, and execute concisely, making it well suited for autonomous agents, collaborative multi-agent systems, and long-horizon software engineering workflows.