Gemini 3.5 Flash vs GPT-5.2 Pro: Pricing Comparison
Compare pricing, capabilities, and costs for your LLM workloads.
Gemini 3.5 Flash
Pricing (per 1M tokens)
Input$1.50
Output$9.00
Cached Input$0.1500
Batch Input$0.7500
Batch Output$4.50
Context & Output
Context Window1M tokens
Max Output65.5K tokens
Capabilities
Categorymid
Multimodaltext + image + audio
Fine-tuningNo
StreamingYes
OpenAI
GPT-5.2 Pro
Pricing (per 1M tokens)
Input$10.50
Output$84.00
Context & Output
Context Window400K tokens
Max Output128K tokens
Capabilities
Categoryflagship
Multimodaltext + image + audio
Fine-tuningNo
StreamingYes
Quick Verdict
Cheaper Input Price
Gemini 3.5 Flash
85.7% cheaper
Cheaper Output Price
Gemini 3.5 Flash
89.3% cheaper
Larger Context Window
Gemini 3.5 Flash
+600K tokens
Cost Comparison
Sample workload: 1,000,000 input tokens + 1,000,000 output tokens
Gemini 3.5 Flash
$10.50
$1.50/1M input + $9.00/1M output
GPT-5.2 Pro
$94.50
$10.50/1M input + $84.00/1M output
Gemini 3.5 Flash is 88.9% cheaper for this workload.
Frequently Asked Questions
Which is cheaper, Gemini 3.5 Flash or GPT-5.2 Pro?
For input tokens, Gemini 3.5 Flash is cheaper at $1.50 per 1M tokens. For output tokens, Gemini 3.5 Flash is cheaper at $9.00 per 1M tokens. The overall cost depends on your workload's input/output ratio.
What is the context window size of Gemini 3.5 Flash vs GPT-5.2 Pro?
Gemini 3.5 Flash has a context window of 1M tokens, while GPT-5.2 Pro has 400K tokens. Gemini 3.5 Flash supports a larger context window of 1M tokens, which is beneficial for processing longer documents.
Need more tools?
Explore our complete suite of LLM calculators and comparison tools.