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.

MAI-Transcribe 2Microsoft Remove
S1Fish Audio Remove
Grok 4.7SpaceXAI Remove
S2 ProFish Audio Remove

4 is the maximum. Remove one to add another.

mai-transcribe-2 vs s1 vs grok-4.7 vs s2-pro
Attribute	MAI-Transcribe 2mai-transcribe-2	S1s1	Grok 4.7grok-4.7	S2 Pros2-pro
Pricing
Input	$0 / 1M	$0 / 1M	$1.60 / 1M	$0 / 1M
Output	$0 / 1M	$0 / 1M	$4.80 / 1M	$0 / 1M
Cache Write (5m)	Not applicable	Not applicable	$1.60 / 1M	Not applicable
Cache Write (1h)	Not applicable	Not applicable	$1.60 / 1M	Not applicable
Cache Read	Not applicable	Not applicable	$1.60 / 1M	Not applicable
Web Search	$0 / 1M	$0 / 1M	$0 / 1M	$0 / 1M
Context
Max context	N/A	N/A	500K	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	Microsoft	Fish Audio	SpaceXAI	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	2026-09-03	2026-07-29	—	2026-07-29
Description
Summary	Microsoft MAI-Transcribe-2 speech-to-text. Billed per second of audio.	Fish Audio S1 text-to-speech. Billed per UTF-8 byte of input text.	Grok 4.7 is SpaceXAI's flagship model for coding, agentic workflows, and professional knowledge work, succeeding Grok 4.6. It is particularly strong at long-running software engineering, self-verification, and long-context execution, while improving capabilities in document drafting, presentations, and other professional tasks. Trained with extended reinforcement learning focused on multi-hour problems, Grok 4.7 is optimized for sustained, complex task execution and natively supports the Grok Bot harness for conversational workflows. It also introduces an enhanced safeguard stack designed to combine strong jailbreak resistance with low refusal rates for legitimate technical work. Reported benchmark results use xhigh reasoning effort.	Fish Audio S2 Pro text-to-speech. Billed per UTF-8 byte of input text.