Best GPT-5.5 alternatives
Users may seek alternatives to GPT-5.5 because of its high output price of $30 per million tokens and lack of native audio or video support. This list covers multimodal models with varying intelligence indices, speeds, prices, context windows, and modality capabilities.
Multimodal model with 1M-token context for complex text and image tasks.
OpenAI's multimodal model for large-scale text and image tasks.
Google's fast multimodal model for efficient text, image, and video tasks.
It provides a larger 2000000 context window and multi-agent coordination for workflows, but lacks audio or video modalities and has unknown intelligence and speed metrics.
OpenAI's closed multimodal model for large-scale text and image tasks.
OpenAI's multimodal model for large-scale text, image and file tasks.
Multimodal model handling images, text, and files over vast contexts.
OpenAI's multimodal model for large-scale image, text, and file processing.
Frequently asked questions
Claude Opus 4.8 (Fast) has the highest listed intelligence_index at 61.4 compared to GPT-5.5's 50.8.