GPT-5 Pro
by OpenAI · openai/gpt-5-pro · #320 cheapest of 325 paid models
Prices updated Jul 22, 2026, 1:41 AM UTC · refreshed hourly
GPT-5 Pro is OpenAI’s most advanced model, offering major improvements in reasoning, code quality, and user experience. It is optimized for complex tasks that require step-by-step reasoning, instruction following, and...
Compare vs:Claude Sonnet 5Claude Opus 4.6Claude Haiku 4.5Gemini 3.6 Flash
Pricing
Input
$15.00
per 1M tokens
Output
$120.00
per 1M tokens
Blended (3:1)
$41.25
3 input : 1 output
Cache read
—
per 1M cached tokens
Cache write
—
per 1M tokens
Cache & batch economics
Effective prices for GPT-5 Pro (no cache-read rate published — hits billed as normal input).
| Cache hit rate | Effective blended $/1M | Example request* | vs no cache |
|---|---|---|---|
| 0% | $41.25 | $1.65 | — |
| 50% | $41.25 | $1.65 | −0% |
| 90% | $41.25 | $1.65 | −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 | $0.0435 | $43.50 |
| Document summary | 8,000 | 1,000 | $0.24 | $240.00 |
| Codebase question (RAG) | 30,000 | 2,000 | $0.69 | $690.00 |
| Long-context analysis | 150,000 | 5,000 | $2.85 | $2,850 |
Specs
Context window
400K
tokens
Max output
128K
tokens
Input modalities
image, text, file
Tokenizer
GPT