Grok 3 vs GPT-5.5: 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
GPT-5.5
Pricing (per 1M tokens)
Input$5.00
Output$30.00
Cached Input$0.5000
Batch Input$2.50
Batch Output$15.00
Context & Output
Context Window1M tokens
Max Output128K tokens
Capabilities
Categoryflagship
Multimodaltext + image + audio
Fine-tuningNo
StreamingYes
Quick Verdict
Cheaper Input Price
Grok 3
40.0% cheaper
Cheaper Output Price
Grok 3
50.0% cheaper
Larger Context Window
GPT-5.5
+868.9K 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
GPT-5.5
$35.00
$5.00/1M input + $30.00/1M output
Grok 3 is 48.6% cheaper for this workload.
Frequently Asked Questions
Which is cheaper, Grok 3 or GPT-5.5?
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 GPT-5.5?
Grok 3 has a context window of 131.1K tokens, while GPT-5.5 has 1M tokens. GPT-5.5 supports a larger context window of 1M tokens, which is beneficial for processing longer documents.
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