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Put up to 4 models beside each other — token prices, context windows, capabilities and provider, from the same catalogue the model pages read.

  1. GPT-6 SolOpenAIRemove
  2. GPT-5.6 Sol ProOpenAIRemove
gpt-6-sol vs gpt-5.6-sol-pro
AttributeGPT-6 Solgpt-6-solGPT-5.6 Sol Progpt-5.6-sol-pro
Pricing
Input$2.00 / 1M$5.00 / 1M
Output$10.00 / 1M$30.00 / 1M
Cache Write (5m)$2.00 / 1M$5.00 / 1M
Cache Write (1h)$2.00 / 1M$5.00 / 1M
Cache Read$2.00 / 1M$5.00 / 1M
Web Search$0 / 1M$0 / 1M
Context
Max context1.1M1M
Max outputN/AN/A
Capabilities
VisionYesYes
Function CallingYesYes
JSON ModeYesYes
StreamingYesYes
Catalogue
ProviderOpenAIOpenAI
Categorychatchat
Charge typePay As You GoPay As You Go
Released
Description
SummaryGPT-6 Sol is OpenAI's cost-efficient high-end model in the GPT-6 series, positioned between the flagship GPT-6 Astra and the fast GPT-6 Luna tier. It is designed for professional knowledge work, agentic coding, business workflow automation, and computer-use tasks, with particular strength in long-horizon software engineering across real-world codebases. GPT-6 Sol approaches Astra-level factual reliability at a significantly lower cost, while sharing its clear and concise communication style. This balance of capability, reliability, and efficiency makes it well suited for production agents, complex engineering workflows, and scalable professional applicationsGPT-5.6 Sol Pro uses the same underlying model as GPT-5.6 Sol, but runs with reasoning.mode set to pro for higher-quality responses on complex tasks. Optimized for deeper reasoning and more reliable execution, it is particularly well suited for advanced coding, long-horizon problem solving, and agentic workflows where accuracy and solution quality take priority over speed and cost.