Grok 4.3 vs o3 Pro: Pricing Comparison
Compare pricing, capabilities, and costs for your LLM workloads.
xAI
Grok 4.3
Pricing (per 1M tokens)
Input$1.25
Output$2.50
Cached Input$0.2000
Context & Output
Context Window1M tokens
Max Output32.8K 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 4.3
93.8% cheaper
Cheaper Output Price
Grok 4.3
96.9% cheaper
Larger Context Window
Grok 4.3
+800K tokens
Cost Comparison
Sample workload: 1,000,000 input tokens + 1,000,000 output tokens
Grok 4.3
$3.75
$1.25/1M input + $2.50/1M output
o3 Pro
$100.00
$20.00/1M input + $80.00/1M output
Grok 4.3 is 96.3% cheaper for this workload.
Frequently Asked Questions
Which is cheaper, Grok 4.3 or o3 Pro?
For input tokens, Grok 4.3 is cheaper at $1.25 per 1M tokens. For output tokens, Grok 4.3 is cheaper at $2.50 per 1M tokens. The overall cost depends on your workload's input/output ratio.
What is the context window size of Grok 4.3 vs o3 Pro?
Grok 4.3 has a context window of 1M tokens, while o3 Pro has 200K tokens. Grok 4.3 supports a larger context window of 1M tokens, which is beneficial for processing longer documents.
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