GPT-5.6 Sol

openai/gpt-5.6-sol

The flagship GPT-5.6 tier for complex professional work, with reasoning effort configurable from none to maximum.

Review option pricing before running.

Runs started with multiple options stay blind until you vote.

Use through the API
In / out per 1M
Official price: $4.00Sale price: $2.80Official price: $20.00Sale price: $14.0030% off
Modalities
Text, Image
Context
1.1M
Released
Jul 9, 2026

Overview

The flagship GPT-5.6 tier for complex professional work, with reasoning effort configurable from none to maximum. It is billed from the same balance as every other model and tool here, and the price of each call comes back in the response.

Run GPT-5.6 Sol with an agent

Each guide pairs this model with a currently compatible agent, explains their separate roles, and opens the shared Composer with both selections ready.

  • Hermes + GPT-5.6 Sol

    Compatibility, setup, current model facts, pricing boundaries, and a preselected Composer.

    Open guide
  • Codex + GPT-5.6 Sol

    Compatibility, setup, current model facts, pricing boundaries, and a preselected Composer.

    Open guide
  • OpenClaw + GPT-5.6 Sol

    Compatibility, setup, current model facts, pricing boundaries, and a preselected Composer.

    Open guide
  • pi + GPT-5.6 Sol

    Compatibility, setup, current model facts, pricing boundaries, and a preselected Composer.

    Open guide
  • DeepSeek Harness + GPT-5.6 Sol

    Compatibility, setup, current model facts, pricing boundaries, and a preselected Composer.

    Open guide
  • Kimi Code + GPT-5.6 Sol

    Compatibility, setup, current model facts, pricing boundaries, and a preselected Composer.

    Open guide
  • OpenCode + GPT-5.6 Sol

    Compatibility, setup, current model facts, pricing boundaries, and a preselected Composer.

    Open guide
  • Cline + GPT-5.6 Sol

    Compatibility, setup, current model facts, pricing boundaries, and a preselected Composer.

    Open guide
  • DeepAgents + GPT-5.6 Sol

    Compatibility, setup, current model facts, pricing boundaries, and a preselected Composer.

    Open guide
  • goose + GPT-5.6 Sol

    Compatibility, setup, current model facts, pricing boundaries, and a preselected Composer.

    Open guide
  • Grok Build + GPT-5.6 Sol

    Compatibility, setup, current model facts, pricing boundaries, and a preselected Composer.

    Open guide
  • Kilo + GPT-5.6 Sol

    Compatibility, setup, current model facts, pricing boundaries, and a preselected Composer.

    Open guide
  • MiniMax Code + GPT-5.6 Sol

    Compatibility, setup, current model facts, pricing boundaries, and a preselected Composer.

    Open guide
  • Qwen Code + GPT-5.6 Sol

    Compatibility, setup, current model facts, pricing boundaries, and a preselected Composer.

    Open guide

Pricing

30% off

Prices in USD per million tokens, using your plan when signed in.

Each request uses the tier matching its full input context, including cached input. Output tokens do not choose the tier. Choose the row for your cache and thinking modes.

Input context (tokens)Cache modeThinkingInputOutputCache readCache write
Up to 272,000AutomaticStandardOfficial price: $4.00Sale price: $2.80Official price: $20.00Sale price: $14.00Official price: $0.4Sale price: $0.28—
272,001–1,050,000AutomaticStandardOfficial price: $8.00Sale price: $5.60Official price: $30.00Sale price: $21.00Official price: $0.8Sale price: $0.56—

Your balance and per-call records come from /v1/credits and /v1/generation.

Use it

Point your client at the gateway and pass this model id. Nothing else changes.

import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://gateway.agentsky.dev/v1",
  apiKey: process.env.AGENTSKY_API_KEY, // ast_…
});

const completion = await client.chat.completions.create({
  model: "openai/gpt-5.6-sol",
  messages: [{ role: "user", content: "Summarise this ticket." }],
});
console.log(completion.usage.cost); // USD, in the response

Questions