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GPT-4o Search Preview vs Gpt Audio 1 5
This page is context-first: how much text each model can take in one request. Full specs adds capabilities and limits; the pricing matrix below is only about $/million tokens from hosts that list both models.
Model
GPT-4o Search Preview
Context window
128K
128,000 tokens · ~96K words
Context window · side by side
Bar length is relative to the larger of the two windows (100% = max of this pair). This is not pricing.
Same context window size for both models.
GPT-4o Search Preview and Gpt Audio 1 5 have identical context windows (128K tokens). Gpt Audio 1 5 is 0% cheaper on input.
Full specs
Context, output, capabilities, and dates. Green highlights the favorable value where we compute a winner.
| Spec | GPT-4o Search Preview | Gpt Audio 1 5 |
|---|---|---|
| Context window | 128,000 tokens (128K) | 128,000 tokens (128K) |
| Max output tokens | 16,384 tokens (16K) | 16,384 tokens (16K) |
| Speed tier | Balanced | Balanced |
| Vision | Yes | No |
| Function calling | Yes | Yes |
| Extended thinking | No | No |
| Prompt caching | Yes | No |
| Batch API | Yes | No |
| Release date | Mar 2025 | N/A |
Pricing matrix
Dollar rates only: hosts that list both models, per 1M tokens. For how much text fits, use the context section above — not this table.
| Provider | GPT-4o Search Preview in | GPT-4o Search Preview out | Gpt Audio 1 5 in | Gpt Audio 1 5 out |
|---|---|---|---|---|
| Openai | $2.50/M | $10.00/M | $2.50/M | $10.00/M |
Frequently asked questions
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Example: a multi-turn chat session
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