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Put up to 4 models beside each other — token prices, context windows, capabilities and provider, from the same catalogue the model pages read.

Gemini 3.5 FlashGoogle Remove
Universal-3.5 ProAssemblyAI Remove
GPT-6.1 SolOpenAI Remove

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gemini-3.5-flash vs universal-3-5-pro vs gpt-6.1-sol
Attribute	Gemini 3.5 Flashgemini-3.5-flash	Universal-3.5 Prouniversal-3-5-pro	GPT-6.1 Solgpt-6.1-sol
Pricing
Input	$1.50 / 1M	$0 / 1M	$2.00 / 1M
Output	$9.00 / 1M	$0 / 1M	$10.00 / 1M
Cache Write (5m)	$1.50 / 1M	Not applicable	$2.00 / 1M
Cache Write (1h)	$1.50 / 1M	Not applicable	$2.00 / 1M
Cache Read	$1.50 / 1M	Not applicable	$2.00 / 1M
Web Search	$0 / 1M	$0 / 1M	$0 / 1M
Context
Max context	1M	N/A	1M
Max output	N/A	N/A	N/A
Capabilities
Vision	Yes	No	Yes
Function Calling	Yes	No	Yes
JSON Mode	Yes	No	Yes
Streaming	Yes	No	Yes
Catalogue
Provider	Google	AssemblyAI	OpenAI
Category	chat	voice	chat
Charge type	Pay As You Go	Pay As You Go	Pay As You Go
Released	—	2026-09-22	—
Description
Summary	Gemini 3.5 Flash is Google's high-efficiency multimodal model, delivering near-Pro level performance in coding and reasoning at Flash-tier speed and cost. It supports text, image, video, audio, and PDF inputs, making it well suited for diverse multimodal workflows. Optimized for coding proficiency and parallel agentic execution, the model defaults to medium thinking effort for faster, cost-efficient responses while supporting configurable thinking levels (minimal, low, medium, high) for fine-grained cost–performance control.	AssemblyAI Universal-3.5 Pro speech-to-text. Billed per second of audio.	GPT-6.1 Sol is an upgraded high-end model in OpenAI's GPT-6 series, positioned below the flagship GPT-6 Astra. It is optimized for agentic coding, computer use, document-heavy professional work, and multi-step business automation, delivering near-Astra-level capability at significantly lower cost. Compared with GPT-6 Sol, it offers improved factual reliability and stronger adherence to explicit constraints and user intent, making it well suited for complex, long-running agentic workflows where accurate and dependable execution is critical.