Price comparison · checked October 12, 2026

GPT-6.1 Sol vs Gemini 3.8 Flash pricing

For a typical support chatbot (60,000 conversations a month), Gemini 3.8 Flash costs $135 a month and GPT-6.1 Sol costs $360. That makes Gemini 3.8 Flash 2.7× cheaper for this workload.

GPT-6.1 SolGemini 3.8 Flash
ProviderOpenAIGoogle
Input / 1M$2.00$0.75
Cached input / 1M$0.10–
Output / 1M$10.00$3.75
Context window1.05M1M
NotesShort-context rateRises to $1.50 / $7.50 on Jan 1, 2027

Monthly cost by workload

WorkloadGPT-6.1 SolGemini 3.8 FlashDifference
Support chatbot
60,000 req · 1,500 in / 300 out
$360$135Gemini 3.8 Flash 2.7× cheaper
Document summaries
20,000 req · 6,000 in / 400 out
$320$120Gemini 3.8 Flash 2.7× cheaper
Coding assistant
30,000 req · 4,000 in / 800 out
$480$180Gemini 3.8 Flash 2.7× cheaper
RAG search
100,000 req · 2,500 in / 250 out
$750$281Gemini 3.8 Flash 2.7× cheaper

Standard rates, no caching or batch discounts. Sources: ai.google.dev · developers.openai.com

Try your own numbers

Start from a use case

1,000 tokens is about 750 English words. Input includes your system prompt, chat history and any retrieved documents.

Gemini 3.8 Flash
GoogleCheapest
$135 /mo
GPT-6.1 Sol
OpenAI
$360 /mo

Related comparisons