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.
- Universal-3.5 ProAssemblyAIRemove
- Transcribe 1 ProFish AudioRemove
- Perceptron Mk1.5PerceptronRemove
- Aura-2DeepgramRemove
4 is the maximum. Remove one to add another.
| Attribute | Universal-3.5 Prouniversal-3-5-pro | Transcribe 1 Protranscribe-1-pro | Perceptron Mk1.5perceptron-mk1.5 | Aura-2aura-2 |
|---|---|---|---|---|
| Pricing | ||||
| Input | $0 / 1M | $0 / 1M | $0.15 / 1M | $0 / 1M |
| Output | $0 / 1M | $0 / 1M | $1.50 / 1M | $0 / 1M |
| Cache Write (5m) | Not applicable | Not applicable | $0.15 / 1M | Not applicable |
| Cache Write (1h) | Not applicable | Not applicable | $0.15 / 1M | Not applicable |
| Cache Read | Not applicable | Not applicable | $0.15 / 1M | Not applicable |
| Web Search | $0 / 1M | $0 / 1M | $0 / 1M | $0 / 1M |
| Context | ||||
| Max context | N/A | N/A | 36.9K | N/A |
| Max output | N/A | N/A | N/A | N/A |
| Capabilities | ||||
| Vision | No | No | No | No |
| Function Calling | No | No | No | No |
| JSON Mode | No | No | No | No |
| Streaming | No | No | Yes | No |
| Catalogue | ||||
| Provider | AssemblyAI | Fish Audio | Perceptron | Deepgram |
| Category | voice | voice | chat | voice |
| Charge type | Pay As You Go | Pay As You Go | Pay As You Go | Pay As You Go |
| Released | 2026-09-22 | 2026-09-24 | 2026-09-25 | 2026-07-16 |
| Description | ||||
| Summary | AssemblyAI Universal-3.5 Pro speech-to-text. Billed per second of audio. | Fish Audio Transcribe 1 Pro speech-to-text with speaker labels; transcripts include speaker tags such as <|speaker:0|>. Billed per second of audio. | Perceptron Mk1.5 chat model that accepts audio input. Audio and text input are billed per token. | Deepgram Aura-2 text-to-speech for real-time voice applications. Billed per input character. |