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.

GPT-6 SolOpenAI Remove
Nova-3Deepgram Remove
Grok STT 1.0xAI Remove
S2 ProFish Audio Remove

4 is the maximum. Remove one to add another.

gpt-6-sol vs nova-3 vs grok-stt-1.0 vs s2-pro
Attribute	GPT-6 Solgpt-6-sol	Nova-3nova-3	Grok STT 1.0grok-stt-1.0	S2 Pros2-pro
Pricing
Input	$2.00 / 1M	$0 / 1M	$0 / 1M	$0 / 1M
Output	$10.00 / 1M	$0 / 1M	$0 / 1M	$0 / 1M
Cache Write (5m)	$2.00 / 1M	Not applicable	Not applicable	Not applicable
Cache Write (1h)	$2.00 / 1M	Not applicable	Not applicable	Not applicable
Cache Read	$2.00 / 1M	Not applicable	Not applicable	Not applicable
Web Search	$0 / 1M	$0 / 1M	$0 / 1M	$0 / 1M
Context
Max context	1.1M	N/A	N/A	N/A
Max output	N/A	N/A	N/A	N/A
Capabilities
Vision	Yes	No	No	No
Function Calling	Yes	No	No	No
JSON Mode	Yes	No	No	No
Streaming	Yes	No	No	No
Catalogue
Provider	OpenAI	Deepgram	xAI	Fish Audio
Category	chat	voice	voice	voice
Charge type	Pay As You Go	Pay As You Go	Pay As You Go	Pay As You Go
Released	—	2026-07-15	2026-07-23	2026-07-29
Description
Summary	GPT-6 Sol is OpenAI's cost-efficient high-end model in the GPT-6 series, positioned between the flagship GPT-6 Astra and the fast GPT-6 Luna tier. It is designed for professional knowledge work, agentic coding, business workflow automation, and computer-use tasks, with particular strength in long-horizon software engineering across real-world codebases. GPT-6 Sol approaches Astra-level factual reliability at a significantly lower cost, while sharing its clear and concise communication style. This balance of capability, reliability, and efficiency makes it well suited for production agents, complex engineering workflows, and scalable professional applications	Deepgram Nova-3 speech-to-text. Billed per second of audio.	xAI Grok STT 1.0 speech-to-text. Billed per second of audio.	Fish Audio S2 Pro text-to-speech. Billed per UTF-8 byte of input text.