GPT-6 Astra Pro vs GPT Audio compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.
GPT-6 Astra Pro — full profile › · GPT Audio — full profile ›
Prices & specs refreshed from live data · olud.ai
Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.
| Spec | GPT-6 Astra Pro | GPT Audio | Winner |
|---|---|---|---|
| Maker | OpenAI | OpenAI | – |
| Type | Proprietary | Proprietary | – |
| Context window | 1.1M tokens | 128K tokens | |
| Input price | $10/M | $2.5/M | |
| Output price | $50/M | $10/M | |
| Vision / multimodal | Yes | No | |
| Tool / function calling | Yes | Yes | = Tie |
| Self-hostable | No (API only) | No (API only) | – |
| License | Proprietary | Proprietary | – |
GPT Audio is ~5.0× cheaper than GPT-6 Astra Pro on output tokens ($10 vs $50 per M tokens).
| Capability | GPT-6 Astra Pro | GPT Audio |
|---|---|---|
| Open weights (downloadable) | ✗ | ✗ |
| Self-hostable | ✗ | ✗ |
| Runs fully offline | ✗ | ✗ |
| Vision / multimodal | ✓ | ✗ |
| Tool / function calling | ✓ | ✓ |
| 1M+ context window | ✓ | ✗ |
| Criterion | GPT-6 Astra Pro | GPT Audio |
|---|---|---|
| Cost-efficiency | 2.0 | 3.5 |
| Context window | 5.0 | 3.5 |
| Openness | 1.5 | 1.5 |
| Self-hosting | 1.0 | 1.0 |
| Multimodality | 5.0 | 3.5 |
Scores come from live data — output price (cost), context length, open vs closed weights (openness & self-hosting) and vision/tool support (multimodality). Raw task quality isn't scored here; it depends on your benchmark — see the verdict.
GPT-6 Astra Pro is the same underlying model as [GPT-6 Astra](https://openrouter.ai/openai/gpt-6-astra), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. Learn more in OpenAI's docs: https://develope
The gpt-audio model is OpenAI's first generally available audio model. The new snapshot features an upgraded decoder for more natural sounding voices and maintains better voice consistency. Audio is priced...
GPT Audio is cheaper on output ($10/M vs $50/M).
GPT-6 Astra Pro offers the larger context window (1.1M tokens).
Choose GPT Audio for the lower output price ($10/M vs $50/M). Choose GPT-6 Astra Pro if you need the larger 1.1M context window.
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