Side by side
GPT-6 Astra Pro (batch) vs GPT Audio
Source: OpenRouter (live)
Live figures
The numbers
Best value in each row is highlighted. “Not declared” means the provider does not advertise the feature on its listing.
| Attribute | ||
|---|---|---|
| Input priceUSD per 1M tokens | $5.00 | $2.50 (best) |
| Output priceUSD per 1M tokens | $25.00 | $10.00 (best) |
| Blended price75% in / 25% out | $10.00 | $4.38 (best) |
| Vs. market median | 12.5× dearer | 5.5× dearer |
| Value rankcheapest = 1 | #382 | #346 (best) |
| Context windowtokens | 1.1M (best) | 128K |
| Max outputtokens | 128K (best) | 16K |
| Input modalities | file, image, text | text, audio |
| Output modalities | text | text, audio |
| Tool calling | Declared | Declared |
| Reasoning | Declared | Not declared |
| Structured output | Declared | Declared |
| Listed on OpenRouter | 2026-09-04 (best) | 2026-01-19 |
Blended price assumes a 3:1 input-to-output token mix. Median is across all 417 priced models.
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What the numbers say
- OpenAI: GPT Audio is the cheapest here at $4.38/M blended — 2.3× less than OpenAI: GPT-6 Astra Pro (batch).
- OpenAI: GPT-6 Astra Pro (batch) offers the largest context window (1.1M tokens) versus 128K for OpenAI: GPT Audio.
- Reasoning mode is declared for OpenAI: GPT-6 Astra Pro (batch) only.
Models
Model pages
Full pricing history, capabilities and alternatives for each model in this comparison.
$10.00
/M blended
OpenAI
$4.38
/M blended
More comparisons
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