GPT-5 mini vs o3: Pricing Comparison
Compare pricing, capabilities, and costs for your LLM workloads.
OpenAI
GPT-5 mini
Pricing (per 1M tokens)
Input$0.2500
Output$2.00
Cached Input$0.0250
Batch Input$0.1250
Batch Output$1.00
Context & Output
Context Window400K tokens
Max Output128K tokens
Capabilities
Categorymid
Multimodaltext + image
Fine-tuningNo
StreamingYes
OpenAI
o3
Pricing (per 1M tokens)
Input$2.00
Output$8.00
Cached Input$0.5000
Batch Input$1.00
Batch Output$4.00
Context & Output
Context Window200K tokens
Max Output100K tokens
Capabilities
Categoryflagship
Multimodaltext + image
Fine-tuningNo
StreamingYes
Quick Verdict
Cheaper Input Price
GPT-5 mini
87.5% cheaper
Cheaper Output Price
GPT-5 mini
75.0% cheaper
Larger Context Window
GPT-5 mini
+200K tokens
Cost Comparison
Sample workload: 1,000,000 input tokens + 1,000,000 output tokens
GPT-5 mini
$2.25
$0.2500/1M input + $2.00/1M output
o3
$10.00
$2.00/1M input + $8.00/1M output
GPT-5 mini is 77.5% cheaper for this workload.
Frequently Asked Questions
Which is cheaper, GPT-5 mini or o3?
For input tokens, GPT-5 mini is cheaper at $0.2500 per 1M tokens. For output tokens, GPT-5 mini is cheaper at $2.00 per 1M tokens. The overall cost depends on your workload's input/output ratio.
What is the context window size of GPT-5 mini vs o3?
GPT-5 mini has a context window of 400K tokens, while o3 has 200K tokens. GPT-5 mini supports a larger context window of 400K tokens, which is beneficial for processing longer documents.
How do GPT-5 mini and o3 compare for batch processing?
Both models support batch processing with discounted rates. GPT-5 mini offers a better batch rate at $0.1250 per 1M input tokens. Batch processing is ideal for non-time-sensitive workloads where you can wait for processing.
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