API Prices · OpenAI· API pricing reviewed 2026-10-15
GPT-5.5 API prices
Input and output list prices, with the recorded billing terms and evidence.
OpenAI list prices
USD per million tokens · non-batch requests at the recorded base tier · reviewed · official provider pricing
- Input
- $5.00/ 1M tokens
- Output
- $30.00/ 1M tokens
- Blended · 3:1 input/output
- $11.25/ 1M tokens
Billing terms: ≤272K prompt tokens; above 272K $10/$45.
One provider listing is recorded for this model. Blended = (3 × input + output) ÷ 4; price alone does not establish equivalent model quality or workload performance.
Recorded history
These archived observations name this exact model and provider. They are separate dated records; unobserved periods remain gaps. Billing conditions can differ from the current listing, so no price-change percentage is inferred.
| Observed month | Input $/1M | Output $/1M | Evidence |
|---|---|---|---|
| $5.00 | $30.00 | Archived provider list |
Billing terms and recorded alternatives
The standard tier includes 272K prompt tokens per request. The long-context rate applies to the whole request when the threshold is crossed.
Standard list
- Input $/1M
- $5.00
- Output $/1M
- $30.00
Recorded base tier; model-specific terms below apply.
Cache-hit input
- Input $/1M
- $0.50
- Output $/1M
- Not applicable
Cached input only; cache writes and storage are outside this table.
Batch
- Input $/1M
- $2.50
- Output $/1M
- $15.00
Provider batch API; availability and processing terms apply.
Long context
- Input $/1M
- $10.00
- Output $/1M
- $45.00
The prompt threshold and billing rule are recorded below.
How to read this comparison
Missing cache or batch prices mean they were not recorded for this model; no discount is assumed. Context, modality, time-of-day, introductory offers, taxes and service charges can affect a bill. Check the linked provider terms before buying.
Sources and citation
OpenAI official pricing evidence ↗ · reviewed
AI Compute Tracker (aicomputetracker.com), CC BY 4.0; third-party terms apply to data from Model API pricing pages
Copy-ready price citation
Cite as: AI Compute Tracker, “GPT-5.5 API price”: $5.00 per 1M input tokens and $30.00 per 1M output tokens (OpenAI list price for non-batch requests; ≤272K prompt tokens; above 272K $10/$45; blended 3:1 $11.25), checked 2026-10-15, https://aicomputetracker.com/inference/#gpt-5-5, AI Compute Tracker (aicomputetracker.com), CC BY 4.0; third-party terms apply to data from Model API pricing pages, accessed <date you visit>