Compare models
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| Attribute | Perceptron Mk1.5perceptron-mk1.5 | Aura-2aura-2 | GPT-6 Luna Progpt-6-luna-pro | S1s1 |
|---|---|---|---|---|
| Pricing | ||||
| Input | $0.15 / 1M | $0 / 1M | $0.10 / 1M | $0 / 1M |
| Output | $1.50 / 1M | $0 / 1M | $0.50 / 1M | $0 / 1M |
| Cache Write (5m) | $0.15 / 1M | Not applicable | $0.10 / 1M | Not applicable |
| Cache Write (1h) | $0.15 / 1M | Not applicable | $0.10 / 1M | Not applicable |
| Cache Read | $0.15 / 1M | Not applicable | $0.10 / 1M | Not applicable |
| Web Search | $0 / 1M | $0 / 1M | $0 / 1M | $0 / 1M |
| Context | ||||
| Max context | 36.9K | N/A | 1.1M | 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 | Yes | No | Yes | No |
| Catalogue | ||||
| Provider | Perceptron | Deepgram | OpenAI | Fish Audio |
| Category | chat | voice | chat | voice |
| Charge type | Pay As You Go | Pay As You Go | Pay As You Go | Pay As You Go |
| Released | 2026-09-25 | 2026-07-16 | — | 2026-07-29 |
| Description | ||||
| Summary | 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. | GPT-6 Luna Pro uses the same underlying model as GPT-6 Luna, but runs with reasoning.mode set to pro for higher-quality responses on complex tasks. It combines Luna's speed and cost efficiency with deeper reasoning and more reliable multi-step execution, making it well suited for advanced coding, computer use, and agentic workflows where higher solution quality is needed without moving to a larger GPT-6 tier. | Fish Audio S1 text-to-speech. Billed per UTF-8 byte of input text. |