GPT-4 Turbo Preview
by OpenAI · openai/gpt-4-turbo-preview · #310 cheapest of 325 paid models
Prices updated Jul 22, 2026, 1:37 AM UTC · refreshed hourly
The preview GPT-4 model with improved instruction following, JSON mode, reproducible outputs, parallel function calling, and more. Training data: up to Dec 2023. **Note:** heavily rate limited by OpenAI while...
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Pricing
Input
$10.00
per 1M tokens
Output
$30.00
per 1M tokens
Blended (3:1)
$15.00
3 input : 1 output
Cache read
—
per 1M cached tokens
Cache write
—
per 1M tokens
Cache & batch economics
Effective prices for GPT-4 Turbo Preview (no cache-read rate published — hits billed as normal input).
| Cache hit rate | Effective blended $/1M | Example request* | vs no cache |
|---|---|---|---|
| 0% | $15.00 | $1.05 | — |
| 50% | $15.00 | $1.05 | −0% |
| 90% | $15.00 | $1.05 | −0% |
*Example: 100K sticky context + 2K new input + 1K output. Batch discount is an approximate 50% off list rates for this provider’s batch API. Confirm on the vendor’s pricing page.
What a request costs
| Workload | Input tokens | Output tokens | Cost / request | Cost / 1K requests |
|---|---|---|---|---|
| Short chat message | 500 | 300 | $0.014 | $14.00 |
| Document summary | 8,000 | 1,000 | $0.11 | $110.00 |
| Codebase question (RAG) | 30,000 | 2,000 | $0.36 | $360.00 |
| Long-context analysis | 150,000 | 5,000 | $1.65 | $1,650 |
Specs
Context window
128K
tokens
Max output
4K
tokens
Input modalities
text
Tokenizer
GPT