Tuesday, July 7, 2026 · No. 345Prices synced within the hour
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The AI Model Price Index

Gemini 3.1 Pro Preview

by Vercel AI Gateway · family gemini · listed Nov 2025RTV

Reasoning-first Gemini preview for agentic coding and complex problem solving

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 PreviewGemini 3.1 Pro Preview: $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 PreviewGemini 3.1 Pro Preview: $12.00 per 1M tokens$12.00GPT-5.5 ProGPT-5.5 Pro: $180 per 1M tokens$180

On the record

Model id
google/gemini-3.1-pro-preview
Context window
1M tokens
Max output
64K tokens
Input modalities
text, image, pdf
Output modalities
text
Reasoning
yes
Tool calls
yes
Open weights
no
Knowledge cutoff
Jan 2025
Released
2025-11-18
Last updated
2026-02-19

Back of the envelope

Also listed at

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