gpt-5.5-pro API
APImart directory import; basic capabilities only.
openai/gpt-5.5-pro · OpenAI · Text
Availability and pricing
Catalogue preview: requests are not enabled · preview
$28.8 per 1 million input tokens; $172.8 per 1 million output tokens
Prices shown use the public default price group. Your account price and the request quote determine the amount reserved and charged.
Pricing revision: rev_87366abd-442e-44ce-9b33-7fefdc013c0b
Supported inputs and limits
chat
- max Input Tokens
- 8192
- max Output Tokens
- 1024
- default Output Tokens
- 256
- tools
- Not enabled
- multimodal Input
- Not enabled
- reasoning
- Not enabled
- cache
- Not enabled
- conversation
- Enabled
- structured Output
- Not enabled
- compact
- Not enabled
- streaming
- Enabled
Limitations
- Draft only until live verification and actual cost reconciliation pass. Input is capped within the first price tier; higher tiers are not enabled. Tools, vision, explicit reasoning, structured output and compaction are disabled pending dedicated live evidence.
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