GPT-5.6 Sol API

US OpenAI | released 2026-07 | knowledge cutoff 2026-06

GPT-5.6 Sol is the newest frontier model from OpenAI, offering state-of-the-art reasoning, coding, and multimodal capabilities. It is the strongest general-purpose model available, suited to the most demanding agentic and analytical workloads.

ImageReasoningCodeTool UseJSON ModeFlagship

Pricing (official list, per 1M tokens)

Input

$5.00/M

Output

$30.00/M

Specifications

Context window400K tokens Max output16.384K tokens Input modalitiesImage StreamingYes APIOpenAI-compatible

How to use GPT-5.6 Sol

Drop-in OpenAI replacement. Change only the base_url and model.

# Python -pip install openai
from openai import OpenAI

client = OpenAI(
    base_url="https://meshtok.com/v1",
    api_key="sk-your-MeshTok-key",
)

resp = client.chat.completions.create(
    model="openai/gpt-5.6-sol",
    messages=[{"role":"user","content":"Hello!"}],
)
print(resp.choices[0].message.content)

# cURL
curl https://meshtok.com/v1/chat/completions \
  -H "Authorization: Bearer sk-your-MeshTok-key" \
  -H "Content-Type: application/json" \
  -d '{"model":"openai/gpt-5.6-sol","messages":[{"role":"user","content":"Hello!"}]}'