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GPT 5.5 Pro (latest) API price
openai/gpt-5.5-pro
The cheapest GPT 5.5 Pro (latest) API is $30.00/M input at Official - OpenAI - all 4 providers compared below, per 1M tokens.
Rolling name - always points to the newest snapshot of this model. The pinned snapshots are priced separately: GPT 5.5 Pro (04-23 snapshot).
FlagshipOpenAI1.1M context4 sellers
Input
$30.00
per 1M tokens · Official - OpenAI
Output
$180.00
per 1M tokens · Official - OpenAI
Where to buy it
Cheapest GPT 5.5 Pro (latest) API providers compared - 4 sellers, from $30.00/M.
| Provider | Input $/M | Output $/M |
|---|---|---|
| OpenRouter (aggregator) | 30.00 | 180.00 |
| OrcaRouter (aggregator) | 30.00 | 180.00 |
| TokenRouter (aggregator) | 30.00 | 180.00 |
| BatchOfficial - OpenAI | 15.00 | 90.00 |
| <272K ctx | 30.00cheapest | 180.00 |
| Flex | 15.00 | 90.00 |
Against its tier
- This model$210.00
- Cheapest · GLM 5.3 Flash$0.29
- Tier median · Grok 4.6$8.00
- Dearest · GPT 5.5 Pro (04-23 snapshot)$330.00
#29 of 31 flagship · cheaper than 7%
Details
- Context window
- 1.1M1,050,000 tokens
- Developer
- OpenAI
- Sellers
- 4
- Cheapest at
- Official - OpenAI
- Combined
- $210.00in + out per 1M
- Last checked
- 2026-08-28