GPT-5.6 Sol (batch)

OPENAI Developer Architecture Profile

OpenRouter ↗HuggingFace ↗

Intelligence (ELO)1491Chatbot Arena Verified

Max Context Limit1,050,000Max Out: 128,000 tokens

Prompt Caching90% OFF$0.10 / 1M cached

Standard API / 1M$6.00🧠 Deep Reasoner

Model Capabilities & Contract SLAs

Coding & Logic
Fictional
Reasoning
Agentic
📋 Strict JSON Schema
🛠️ Native Tool Calling
🧠 Extended Test-Time Reasoning

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

Granular Pricing Matrix

Input Tokens (Standard Prompt)$1.00 / 1M

⚡ Cached Input (Prompt Cache Read)90% OFF$0.10 / 1M

Output Tokens (Completion)$5.00 / 1M

Pricing data via OpenRouter. Sync: 10/2/2026

Evaluate Competitors

VS Engine MatchupGPT-5.6 Sol (batch) vs OpenAI: GPT-5.4 Nano (batch)VS Engine MatchupGPT-5.6 Sol (batch) vs OpenAI: o3 Mini VS Engine MatchupGPT-5.6 Sol (batch) vs Qwen: Qwen3.8 Max Prime VS Engine MatchupGPT-5.6 Sol (batch) vs OpenAI: GPT-5.2 (batch)VS Engine MatchupGPT-5.6 Sol (batch) vs OpenAI: GPT-5.1 (batch)VS Engine MatchupGPT-5.6 Sol (batch) vs OpenAI: GPT-5 Pro