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 Sol ProOpenAI Remove
Claude Sonnet 5.5Anthropic Remove
S2 ProFish Audio Remove
Aura-2Deepgram Remove

4 is the maximum. Remove one to add another.

gpt-6-sol-pro vs claude-sonnet-5.5 vs s2-pro vs aura-2
Attribute	GPT-6 Sol Progpt-6-sol-pro	Claude Sonnet 5.5claude-sonnet-5.5	S2 Pros2-pro	Aura-2aura-2
Pricing
Input	$2.00 / 1M	$2.00 / 1M	$0 / 1M	$0 / 1M
Output	$10.00 / 1M	$10.00 / 1M	$0 / 1M	$0 / 1M
Cache Write (5m)	$2.00 / 1M	$2.50 / 1M	Not applicable	Not applicable
Cache Write (1h)	$2.00 / 1M	$4.00 / 1M	Not applicable	Not applicable
Cache Read	$2.00 / 1M	$0.20 / 1M	Not applicable	Not applicable
Web Search	$0 / 1M	$0 / 1M	$0 / 1M	$0 / 1M
Context
Max context	1.1M	1M	N/A	N/A
Max output	N/A	N/A	N/A	N/A
Capabilities
Vision	Yes	Yes	No	No
Function Calling	Yes	Yes	No	No
JSON Mode	Yes	Yes	No	No
Streaming	Yes	Yes	No	No
Catalogue
Provider	OpenAI	Anthropic	Fish Audio	Deepgram
Category	chat	chat	voice	voice
Charge type	Pay As You Go	Pay As You Go	Pay As You Go	Pay As You Go
Released	—	—	2026-07-29	2026-07-16
Description
Summary	GPT-6 Sol Pro uses the same underlying model as GPT-6 Sol, but runs with reasoning.mode set to pro for higher-quality responses on complex and demanding tasks. Optimized for deeper reasoning, greater accuracy, and more reliable multi-step execution, it is particularly well suited for agentic coding, long-horizon software engineering, professional analysis, and complex automated workflows where solution quality takes priority over latency and cost.	Claude Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, serving as a direct upgrade to Sonnet 5. It excels at feature development, bug fixing, and creating polished documents, presentations, and spreadsheets, while offering clearer writing and communication than its predecessor.	Fish Audio S2 Pro text-to-speech. Billed per UTF-8 byte of input text.	Deepgram Aura-2 text-to-speech for real-time voice applications. Billed per input character.