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GPT-4o Search Preview vs Trinity Mini (free)
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.
Trinity Mini (free) has about 1× the context window of the other in this pair.
Trinity Mini (free) has 2% more context capacity (131K vs 128K tokens).
Quick verdicts
Short takeaways — validate with your own workloads.
Long document processing
Use Trinity Mini (free). Its 131K context fits entire documents without chunking (vs 128K).
Full specs
Context, output, capabilities, and dates. Green highlights the favorable value where we compute a winner.
| Spec | GPT-4o Search Preview | Trinity Mini (free) |
|---|---|---|
| Context window | 128,000 tokens (128K) | 131,072 tokens (131K) |
| Max output tokens | 16,384 tokens (16K) | N/A |
| Speed tier | Balanced | Fast |
| Vision | Yes | No |
| Function calling | Yes | Yes |
| Extended thinking | No | Yes |
| Prompt caching | Yes | No |
| Batch API | Yes | No |
| Release date | Mar 2025 | Dec 2025 |
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 | Trinity Mini (free) in | Trinity Mini (free) out |
|---|---|---|---|---|
| Openai | $2.50/M | $10.00/M | — | — |
Frequently asked questions
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Use a smaller model.
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Example: a multi-turn chat session
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