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.

S1Fish Audio Remove
Nova-3Deepgram Remove
GPT-6 SolOpenAI Remove
S2 ProFish Audio Remove

4 is the maximum. Remove one to add another.

s1 vs nova-3 vs gpt-6-sol vs s2-pro
Attribute	S1s1	Nova-3nova-3	GPT-6 Solgpt-6-sol	S2 Pros2-pro
Pricing
Input	$0 / 1M	$0 / 1M	$2.00 / 1M	$0 / 1M
Output	$0 / 1M	$0 / 1M	$10.00 / 1M	$0 / 1M
Cache Write (5m)	Not applicable	Not applicable	$2.00 / 1M	Not applicable
Cache Write (1h)	Not applicable	Not applicable	$2.00 / 1M	Not applicable
Cache Read	Not applicable	Not applicable	$2.00 / 1M	Not applicable
Web Search	$0 / 1M	$0 / 1M	$0 / 1M	$0 / 1M
Context
Max context	N/A	N/A	1.1M	N/A
Max output	N/A	N/A	N/A	N/A
Capabilities
Vision	No	No	Yes	No
Function Calling	No	No	Yes	No
JSON Mode	No	No	Yes	No
Streaming	No	No	Yes	No
Catalogue
Provider	Fish Audio	Deepgram	OpenAI	Fish Audio
Category	voice	voice	chat	voice
Charge type	Pay As You Go	Pay As You Go	Pay As You Go	Pay As You Go
Released	2026-07-29	2026-07-15	—	2026-07-29
Description
Summary	Fish Audio S1 text-to-speech. Billed per UTF-8 byte of input text.	Deepgram Nova-3 speech-to-text. Billed per second of audio.	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	Fish Audio S2 Pro text-to-speech. Billed per UTF-8 byte of input text.