Grok 4.3 vs GPT-5 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
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
Grok 4.3
91.7% cheaper
Cheaper Output Price
Grok 4.3
97.9% cheaper
Larger Context Window
Grok 4.3
+600K 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
GPT-5 Pro
$135.00
$15.00/1M input + $120.00/1M output
Grok 4.3 is 97.2% cheaper for this workload.
Frequently Asked Questions
Which is cheaper, Grok 4.3 or GPT-5 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 GPT-5 Pro?
Grok 4.3 has a context window of 1M tokens, while GPT-5 Pro has 400K tokens. Grok 4.3 supports a larger context window of 1M tokens, which is beneficial for processing longer documents.
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