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gpt-5.3-chat is available from 2 providers. The lowest input price is $1.75 per million tokens from Opper. It supports up to 128K tokens of context.
| Opper | azure/gpt-5.3-chat | $1.75 | $14 | $0.175 | 128K | 16.4K |
| Api.Airforce | gpt-5.3-chat | $4.65 | $36.96 | $2.325 | - | - |