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GPT-5.5

OpenAI GPT-5

ActiveReleased 2026-04-10
ChatJSON modePrompt cachingReasoningStreamingTool callingVision
1.1M
Context window
Yes
Reasoning support
Yes
Tool calling

Pricing

Input
$5.00/M
Output
$30.00/M
Cached input
$0.5/M

Shown for OpenAI, the primary provider surface for this model. Pricing is Cloptima's known static list pricing; live/negotiated rates may differ.

Available via 2 providers

OpenAI
Gateway-routable
gpt-5.5
1.1M context$5.00/$30.00 per M tokens
ChatJSON modePrompt cachingReasoningStreamingTool callingVision
Azure OpenAI
Gateway-routable
gpt-5.5
1.1M context$5.00/$30.00 per M tokens
ChatJSON modePrompt cachingReasoningStreamingTool callingVision