WLRouter
Models/GPT-5.6 Sol
Model Code
gpt-5.6-sol
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Model overview

FrontierReasoningVisionTools

GPT-5.6 Sol is OpenAI's frontier model for complex professional work. It supports text and image input, text output, reasoning, tool use, streaming, structured outputs, and both Responses and Chat Completions APIs.

Company: OpenAIProvider: OpenAI

Model capabilities

Input modalityT
Output modalityT
Model experience✓
Function calling✓
Structured output✓
Web search✓
Prefix completion-
Context cache✓
Batch inference✓
Fine-tuning×

Model pricing

Input$5/1M tokens
Input (cache hit)$0.50/1M tokens
Output$30/1M tokens
Input (over 272K context)$10/1M tokens
Output (over 272K context)$45/1M tokens

Tool call pricing

Web search Responses API$10/1K calls + model token charges
File search Responses APIUsage based

Rate limits and context

Maximum input length1.05M
Context length1.05M
Maximum output length128K
Knowledge cutoff2026-02-16
Supported endpointsResponses / Chat Completions / Batch

API reference

EndpointPOST /v1/chat/completions or POST /v1/responses
SDKOpenAI-compatible

API code examples

Get API Key
from openai import OpenAI

client = OpenAI(
    api_key="$WLROUTER_API_KEY",
    base_url="https://api.wlrouter.com/v1"
)

response = client.chat.completions.create(
    model="gpt-5.6-sol",
    messages=[
        {"role": "user", "content": "Reply with one short sentence."}
    ],
    max_tokens=32
)

print(response.choices[0].message.content)