SIDE BY SIDE
GPT-5.4 Image 2 vs GPT Audio
Both are GPT models. GPT-5.4 Image 2 was added to OpenRouter on 2026-04-21, GPT Audio on 2026-01-19.
| Field | GPT-5.4 Image 2 | GPT Audio |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Family | GPT | GPT |
| Province | The Tidal Isles | The Tidal Isles |
| Context window | 272K tokens | 128K tokens |
| Maximum output | 128K tokens | 16K tokens |
| Input / 1M tokens | $8.00 | $2.50 |
| Output / 1M tokens | $15.0 | $10.0 |
| Accepts | text, files, images | text, audio |
| Produces | text, images | text, audio |
| Reasoning | Yes | No |
| Tool use | No | Yes |
| Added to OpenRouter | 2026-04-21 | 2026-01-19 |
| Model ID | openai/gpt-5.4-image-2 | openai/gpt-audio |
Questions and answers
Which is cheaper, GPT-5.4 Image 2 or GPT Audio?
GPT Audio costs less for both input ($2.50 vs $8.00) and output ($10.0 vs $15.0) per million tokens. On input, GPT Audio is 69% cheaper.
Which has the larger context window?
GPT-5.4 Image 2: 272K tokens against 128K for GPT Audio (2.1× as long).
What can one do that the other cannot?
Only GPT-5.4 Image 2 supports reasoning and image input. Only GPT Audio supports tool use.
Answers are computed from the 2026-10-24 catalog snapshot.