GPT-6 Astra vs GPT-5.5 Pro: Pricing Comparison
Compare pricing, capabilities, and costs for your LLM workloads.
OpenAI
GPT-6 Astra
Pricing (per 1M tokens)
Input$10.00
Output$50.00
Cached Input$1.00
Batch Input$5.00
Batch Output$25.00
Context & Output
Context Window1M tokens
Max Output128K tokens
Capabilities
Categoryflagship
Multimodaltext + image + audio
Fine-tuningNo
StreamingYes
OpenAI
GPT-5.5 Pro
Pricing (per 1M tokens)
Input$30.00
Output$180.00
Context & Output
Context Window1M tokens
Max Output128K tokens
Capabilities
Categoryflagship
Multimodaltext + image + audio
Fine-tuningNo
StreamingYes
Quick Verdict
Cheaper Input Price
GPT-6 Astra
66.7% cheaper
Cheaper Output Price
GPT-6 Astra
72.2% cheaper
Larger Context Window
GPT-5.5 Pro
+0 tokens
Cost Comparison
Sample workload: 1,000,000 input tokens + 1,000,000 output tokens
GPT-6 Astra
$60.00
$10.00/1M input + $50.00/1M output
GPT-5.5 Pro
$210.00
$30.00/1M input + $180.00/1M output
GPT-6 Astra is 71.4% cheaper for this workload.
Frequently Asked Questions
Which is cheaper, GPT-6 Astra or GPT-5.5 Pro?
For input tokens, GPT-6 Astra is cheaper at $10.00 per 1M tokens. For output tokens, GPT-6 Astra is cheaper at $50.00 per 1M tokens. The overall cost depends on your workload's input/output ratio.
What is the context window size of GPT-6 Astra vs GPT-5.5 Pro?
GPT-6 Astra has a context window of 1M tokens, while GPT-5.5 Pro has 1M tokens. GPT-6 Astra supports a larger context window of 1M tokens, which is beneficial for processing longer documents.
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