Gemini 3.1 Flash Lite vs GPT-5 Pro: Pricing Comparison
Compare pricing, capabilities, and costs for your LLM workloads.
Gemini 3.1 Flash Lite
Pricing (per 1M tokens)
Input$0.2500
Output$1.50
Cached Input$0.0250
Batch Input$0.1250
Batch Output$0.7500
Context & Output
Context Window1M tokens
Max Output65.5K tokens
Capabilities
Categorybudget
Multimodaltext + image + audio
Fine-tuningNo
StreamingYes
OpenAI
GPT-5 Pro
Pricing (per 1M tokens)
Input$15.00
Output$120.00
Context & Output
Context Window400K tokens
Max Output128K tokens
Capabilities
Categoryflagship
Multimodaltext + image + audio
Fine-tuningNo
StreamingYes
Quick Verdict
Cheaper Input Price
Gemini 3.1 Flash Lite
98.3% cheaper
Cheaper Output Price
Gemini 3.1 Flash Lite
98.8% cheaper
Larger Context Window
Gemini 3.1 Flash Lite
+600K tokens
Cost Comparison
Sample workload: 1,000,000 input tokens + 1,000,000 output tokens
Gemini 3.1 Flash Lite
$1.75
$0.2500/1M input + $1.50/1M output
GPT-5 Pro
$135.00
$15.00/1M input + $120.00/1M output
Gemini 3.1 Flash Lite is 98.7% cheaper for this workload.
Frequently Asked Questions
Which is cheaper, Gemini 3.1 Flash Lite or GPT-5 Pro?
For input tokens, Gemini 3.1 Flash Lite is cheaper at $0.2500 per 1M tokens. For output tokens, Gemini 3.1 Flash Lite is cheaper at $1.50 per 1M tokens. The overall cost depends on your workload's input/output ratio.
What is the context window size of Gemini 3.1 Flash Lite vs GPT-5 Pro?
Gemini 3.1 Flash Lite has a context window of 1M tokens, while GPT-5 Pro has 400K tokens. Gemini 3.1 Flash Lite supports a larger context window of 1M tokens, which is beneficial for processing longer documents.
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