Tuesday, July 7, 2026 · No. 345Prices synced 3 hours ago
All·AI·Model

The AI Model Price Index

Gemini 3.1 Pro Preview Custom Tools

by Google · family gemini-pro · listed Feb 2026RTV

Advanced Gemini model for complex reasoning, coding, and multimodal analysis

Current rates USD per 1M tokens

Input$2.00
Output$12.00
Cache read$0.20
Cache write—

Against the market

Input price vs. maker flagships ($/1M tokens)
DeepSeek V4 FlashDeepSeek V4 Flash: $0.14 per 1M tokens$0.14Qwen3.7 PlusQwen3.7 Plus: $0.50 per 1M tokens$0.50Grok 4.3Grok 4.3: $1.25 per 1M tokens$1.25Gemini 3.5 FlashGemini 3.5 Flash: $1.50 per 1M tokens$1.50Mistral Medium (latest)Mistral Medium (latest): $1.50 per 1M tokens$1.50Gemini 3.1 Pro Preview Custom ToolsGemini 3.1 Pro Preview Custom Tools: $2.00 per 1M tokens$2.00Claude Sonnet 5Claude Sonnet 5: $2.00 per 1M tokens$2.00GPT-5.5 ProGPT-5.5 Pro: $30.00 per 1M tokens$30.00
Output price vs. maker flagships ($/1M tokens)
DeepSeek V4 FlashDeepSeek V4 Flash: $0.28 per 1M tokens$0.28Grok 4.3Grok 4.3: $2.50 per 1M tokens$2.50Qwen3.7 PlusQwen3.7 Plus: $3.00 per 1M tokens$3.00Mistral Medium (latest)Mistral Medium (latest): $7.50 per 1M tokens$7.50Gemini 3.5 FlashGemini 3.5 Flash: $9.00 per 1M tokens$9.00Claude Sonnet 5Claude Sonnet 5: $10.00 per 1M tokens$10.00Gemini 3.1 Pro Preview Custom ToolsGemini 3.1 Pro Preview Custom Tools: $12.00 per 1M tokens$12.00GPT-5.5 ProGPT-5.5 Pro: $180 per 1M tokens$180

On the record

Model id
gemini-3.1-pro-preview-customtools
Context window
1.0M tokens
Max output
66K tokens
Input modalities
text, image, video, audio, pdf
Output modalities
text
Reasoning
yes
Tool calls
yes
Open weights
no
Knowledge cutoff
Jan 2025
Released
2026-02-19
Last updated
2026-02-19
Provider docs
ai.google.dev/gemini-api/docs/models

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