GPT-5.6 Sol

GPT-5.6 Sol is OpenAI's flagship limited-preview GPT-5. Ready to experience the power of AI? Start your journey here!

Platform: Replicate

Language ModelReasoningCodingOpenAI

0 runs

OpenAI limited preview / Codex

30/1M input tokens and $150/1M output tokens; batch pricing listed by OpenAI as $15/1M input tokens and $75/1M output tokens

Commercial

🚀Function Overview

A high-cost OpenAI preview model intended for difficult reasoning and coding tasks where teams are willing to spend more for stronger frontier-model attempts.

Key Features

Official OpenAI GPT-5.6 family member with model ID gpt-5.6-sol
Positioned by OpenAI as the most capable GPT-5.6 preview variant
Designed for hard software engineering and scientific reasoning workloads
Available through staged ChatGPT Pro, Codex, and OpenAI API preview surfaces
Supports OpenAI's new max reasoning effort and Codex ultra-mode positioning for Sol
Official pricing published for standard and batch token usage

Use Cases

•Escalating difficult Codex software engineering tasks
•Testing high-stakes reasoning tasks before choosing a production model route
•Comparing Sol against cheaper GPT-5.6 Terra or Luna runs
•Evaluating limited-preview safety, access, and cost caveats before broad rollout

⚙️Input Parameters

messages

array

Chat or reasoning task messages sent to the OpenAI API or through a supported OpenAI product surface.

model

string

Use gpt-5.6-sol when the OpenAI API account has access to the GPT-5.6 Sol preview.

reasoning_effort

string

OpenAI positions Sol with max reasoning effort for harder tasks; verify the current API parameter contract before production use.

💡Usage Examples

Example 1

Input Parameters

{
  "model": "gpt-5.6-sol",
  "messages": [
    {
      "role": "user",
      "content": "Review this failing distributed-systems test and propose the smallest verified fix."
    }
  ],
  "reasoning_effort": "max"
}

Output Results

A response from the OpenAI preview model. Verify account access, current API parameters, pricing, and safety guidance in OpenAI documentation before production routing.

Quick Actions

Use NowView Documentation

Technical Specifications

Hardware Type: OpenAI limited preview / Codex
Run Count: 0
Commercial Use: Supported
Pricing: 30/1M input tokens and $150/1M output tokens; batch pricing listed by OpenAI as $15/1M input tokens and $75/1M output tokens
Platform: Replicate

Related Keywords

GPT-5.6 Solgpt-5.6-solOpenAI GPT-5.6Codex ultra modemax reasoning effortOpenAI preview modelfrontier coding model

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GPT-5.6 Terra

OpenAI GPT-5.6 limited-preview model variant for cost-sensitive reasoning, coding, and API testing below the flagship Sol tier.

GPT-5.6 Luna

OpenAI GPT-5.6 limited-preview model variant for lower-cost GPT-5.6 family experiments and lighter reasoning or coding tasks.

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