Best Gemini 3.1 Pro Preview Custom Tools alternatives
Users may seek alternatives to Gemini 3.1 Pro Preview Custom Tools because of its preview status that may include occasional instability along with the extra configuration needed for custom tools and potential latency increases from large contexts. This list covers other proprietary multimodal models with large context windows from Anthropic and OpenAI that support text and image tasks.
OpenAI's multimodal model for large-scale text, image and file tasks.
OpenAI's compact multimodal model for long-context file and image tasks.
It processes large-scale image, text, and file tasks with a 400000 context at $120/1M tokens, trading off no native real-time information access against Gemini's flexible extension via custom tools and larger context.
Processes over a million tokens across images, text, and files.
Anthropic's closed multimodal model with a million-token context window.
Google's multimodal model processes text, images, audio, video and files over 1M tokens.
Meta's open multimodal model for long text and image sequences.
Multimodal coding model with 400k-token context from OpenAI.
Frequently asked questions
Claude Opus 4.8 (Fast) has the highest intelligence_index of 61.4 among the listed options with a 1000000 context.