GPT-5.5
$5
Input / MTok
$30
Output / MTok
$0.5
Cache read / MTok
API identifier gpt-5.5
· vendor pricing page
Full price sheet
| Metric | USD / million tokens |
|---|---|
| Input | $5 |
| Output | $30 |
| Cache read | $0.5 |
Price history
| Observed | Metric | Price |
|---|---|---|
| 2026-08-07 12:06:21 | Input | $5 |
| 2026-08-07 12:06:21 | Output | $30 |
| 2026-08-07 12:06:21 | Cache read | $0.5 |
Current prices are free and always will be. The full series — every observation since we started watching, which nobody can reconstruct after the fact — is the part Pro pays for.
Compare with
Models at a similar price point.
| Model | Input | Output | |
|---|---|---|---|
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| Claude Opus 4.6 | $5 | $25 | compare → |
| Claude Opus 4.5 | $5 | $25 | compare → |