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OpenAI

GPT 5.6 Sol

Available

Description

GPT-5.6 Sol is the flagship model in OpenAI's GPT-5.6 series. It is suited for complex reasoning, coding, agentic workflows, command-line work, and multi-step professional tasks.

At a Glance

Key pricing and model details available for this model.

Input price

$5.00

per 1M tokens

Output price

$30.00

per 1M tokens

Context window

1.1M

tokens

Hallucination rate

0%

Token Pricing

Token pricing normalized to per-million-token rates.

Service tier

Set service_tier in your API request to choose throughput and pricing.

Input / 1M tokens

$5.00

Output / 1M tokens

$30.00

Cache Read / 1M tokens

$0.50

Cache Write (1h) / 1M tokens

$6.25

Token Pricing Details

Rates are shown per 1M tokens for easier comparison. Pass service_tier in your request to use the selected tier.

Input / 1M tokens$5.00
Input unit1M tokens
Output / 1M tokens$30.00
Output unit1M tokens
Cache Read / 1M tokens$0.50
Cache Read unit1M tokens
Cache Write (1h) / 1M tokens$6.25

Feature Availability

Capabilities explicitly listed in the current payload.

LLM

Available

Yes

Vision

Available

Yes

Function calling

Available

Yes

Reasoning

Available

Yes

Service tiers

Available

Yes

Service Tiers

Available via the service_tier parameter.

default
flex
priority

Reasoning Effort Levels

none
low
medium
high
xhigh
max

Supported Parameters

frequency_penalty
logit_bias
max_completion_tokens
presence_penalty
reasoning_effort
response_format
service_tier
stop
temperature
tool_choice
tools
top_p

Code Samples

Quick start with the Routeway API

import OpenAI from 'openai';

const openai = new OpenAI({
  baseURL: "https://api.routeway.ai/v1",
  apiKey: "<YOUR_API_KEY>",
});

async function main() {
  const completion = await openai.chat.completions.create({
    model: "gpt-5.6-sol",
    messages: [
      {
        role: "user",
        content: "Explain quantum computing in simple terms"
      }
    ]
  });

  console.log(completion.choices[0].message);
}

main();