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.
| Attribute | o4 Mini Deep Researcho4-mini-deep-research | Universal-3.5 Prouniversal-3-5-pro | Claude Sonnet 5.5claude-sonnet-5.5 |
|---|---|---|---|
| Pricing | |||
| Input | $2.00 / 1M | $0 / 1M | $2.00 / 1M |
| Output | $8.00 / 1M | $0 / 1M | $10.00 / 1M |
| Cache Write (5m) | $2.00 / 1M | Not applicable | $2.50 / 1M |
| Cache Write (1h) | $2.00 / 1M | Not applicable | $4.00 / 1M |
| Cache Read | $2.00 / 1M | Not applicable | $0.20 / 1M |
| Web Search | $0 / 1M | $0 / 1M | $0 / 1M |
| Context | |||
| Max context | 200K | 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 | OpenAI | AssemblyAI | Anthropic |
| Category | chat | voice | chat |
| Charge type | Pay As You Go | Pay As You Go | Pay As You Go |
| Released | — | 2026-09-22 | — |
| Description | |||
| Summary | o4-mini-deep-research is a faster, lower-cost version of OpenAI's deep-research model, designed for complex, multi-step investigations. It automatically relies on web_search for information gathering, which always adds extra usage cost. | AssemblyAI Universal-3.5 Pro speech-to-text. Billed per second of audio. | 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. |