GPT-4o Mini vs GPT 5.5
Compare GPT-4o Mini and GPT 5.5 on key metrics including price, context length, throughput, and other model features.
AuthorOpenAI
Context Length128k
Supports Tools
OpenAI’s most advanced small model, GPT-4o mini, supports both text and image inputs with text outputs. It is highly cost-effective, achieving SOTA intelligence and outperforming larger models on key benchmarks, making it ideal for scalable, interactive applications.
Activity
Last 14 daysPrompt
255MCompletion
5MTotal
260MStartup
Startup
Latency (p50)1.07s
Throughput (p50)40.2 tok/s
Pricing
Input$0.07/M tokens
Output$0.30/M tokens
Cached input-
Features
Input Modalitiestext, image, file
Output Modalitiestext
Supported EndpointsChat Completions
Vision
Supports Tools
AuthorOpenAI
Context Length1.1M
Supports Tools
GPT-5.5 is OpenAI’s frontier model designed for complex professional workloads, building on GPT-5.4 with stronger reasoning, higher reliability, and improved token efficiency on hard tasks. It features a 1M+ token context window (922K input, 128K output) with support for text and image inputs, enabling large-scale reasoning, coding, and multimodal workflows within a single system.
Activity
Last 14 daysPrompt
68MCompletion
3MTotal
71MStartup
Startup
Latency (p50)1.01s
Throughput (p50)50.2 tok/s
Pricing
Input$2.50/M tokens
Output$15.00/M tokens
Cached input$0.25/M tokens
Features
Input Modalitiestext, image, file
Output Modalitiestext
Supported EndpointsChat Completions
Vision
Supports Tools