Compare OpenAI: GPT-5.4 Pro (OpenAI) and OpenAI: GPT-5.5 (OpenAI) by price, context, capabilities, and latency.
Side by side
Compare price, provider, context, capabilities, latency, and source basis.
| Model | Provider | Input | Output | Context | Capabilities | Best for | Latency | Status | Source |
|---|---|---|---|---|---|---|---|---|---|
| OpenAI: GPT-5.4 Proopenai/gpt-5.4-pro | OpenAI | $4.34 / 1M tokens | $26.04 / 1M tokens | 1.1M | StreamingTool callingJSON modeVision | image understanding, multimodal chat | 1000-3000ms | Catalog | Platform curated |
| OpenAI: GPT-5.5openai/gpt-5.5 | OpenAI | $0.723 / 1M tokens | $4.34 / 1M tokens | 1.1M | StreamingTool callingJSON modeVision | image understanding, multimodal chat | 1000-3000ms | Catalog | Platform curated |
FAQ
OpenAI: GPT-5.5 is cheaper ($0.723 / 1M tokens input / $4.34 / 1M tokens output) vs OpenAI: GPT-5.4 Pro ($4.34 / 1M tokens input / $26.04 / 1M tokens output). Actual cost depends on your input/output token mix — estimate it with the pricing calculator.
Both offer the same context window: 1.1M tokens.
Both target Vision. Pick OpenAI: GPT-5.5 to optimize cost, or OpenAI: GPT-5.4 Pro for the longer context window. Test both on real prompts before committing production traffic.
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