GPT-5.6 Sol vs GPT-5 Pro: Pricing Comparison

Compare pricing, capabilities, and costs for your LLM workloads.

OpenAI

GPT-5.6 Sol

Pricing (per 1M tokens)

Input$4.00
Output$20.00
Cached Input$0.4000
Batch Input$2.00
Batch Output$10.00

Context & Output

Context Window1M tokens
Max Output128K tokens

Capabilities

Categoryflagship
Multimodaltext + image + audio
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

GPT-5.6 Sol

73.3% cheaper

Cheaper Output Price

GPT-5.6 Sol

83.3% cheaper

Larger Context Window

GPT-5.6 Sol

+600K tokens

Cost Comparison

Sample workload: 1,000,000 input tokens + 1,000,000 output tokens

GPT-5.6 Sol

$24.00

$4.00/1M input + $20.00/1M output

GPT-5 Pro

$135.00

$15.00/1M input + $120.00/1M output

GPT-5.6 Sol is 82.2% cheaper for this workload.

Frequently Asked Questions

Which is cheaper, GPT-5.6 Sol or GPT-5 Pro?
For input tokens, GPT-5.6 Sol is cheaper at $4.00 per 1M tokens. For output tokens, GPT-5.6 Sol is cheaper at $20.00 per 1M tokens. The overall cost depends on your workload's input/output ratio.
What is the context window size of GPT-5.6 Sol vs GPT-5 Pro?
GPT-5.6 Sol has a context window of 1M tokens, while GPT-5 Pro has 400K tokens. GPT-5.6 Sol supports a larger context window of 1M tokens, which is beneficial for processing longer documents.

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