Grok 3 vs o3 Pro: Pricing Comparison
Compare pricing, capabilities, and costs for your LLM workloads.
xAI
Grok 3
Pricing (per 1M tokens)
Input$3.00
Output$15.00
Cached Input$0.7500
Context & Output
Context Window131.1K tokens
Max Output16.4K tokens
Capabilities
Categoryflagship
Multimodaltext + image
Fine-tuningNo
StreamingYes
OpenAI
o3 Pro
Pricing (per 1M tokens)
Input$20.00
Output$80.00
Context & Output
Context Window200K tokens
Max Output100K tokens
Capabilities
Categoryflagship
Multimodaltext + image
Fine-tuningNo
StreamingYes
Quick Verdict
Cheaper Input Price
Grok 3
85.0% cheaper
Cheaper Output Price
Grok 3
81.3% cheaper
Larger Context Window
o3 Pro
+68.9K tokens
Cost Comparison
Sample workload: 1,000,000 input tokens + 1,000,000 output tokens
Grok 3
$18.00
$3.00/1M input + $15.00/1M output
o3 Pro
$100.00
$20.00/1M input + $80.00/1M output
Grok 3 is 82.0% cheaper for this workload.
Frequently Asked Questions
Which is cheaper, Grok 3 or o3 Pro?
For input tokens, Grok 3 is cheaper at $3.00 per 1M tokens. For output tokens, Grok 3 is cheaper at $15.00 per 1M tokens. The overall cost depends on your workload's input/output ratio.
What is the context window size of Grok 3 vs o3 Pro?
Grok 3 has a context window of 131.1K tokens, while o3 Pro has 200K tokens. o3 Pro supports a larger context window of 200K tokens, which is beneficial for processing longer documents.
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