GPT-5.3 Chat Latest
merge-gateway / openai/gpt-5.3-chat-latest
Input price
$1.75
per 1M tokens
Output price
$14
per 1M tokens
Context
128K
tokens
Capabilities
— Reasoning✓ Tool calls✓ Image input— Open weights
| cache read | $0.175 |
| Context | 128,000 tokens |
| max output | 16,384 tokens |
| Released | 2026-03-03 |
| Data updated | 2026-03-03 |
Prices are official/data-source rates (per 1M tokens), not what relays actually charge — relay prices vary with discounts and group multipliers. See methodology.