GPT-5.6 Sol Pro (batch)

OPENAI Developer Architecture Profile

Intelligence (ELO)1499Chatbot Arena Verified

Max Context1,050,000Tokens

API Cost / 1M$17.50Blended Prompt + Completion

Model Capabilities

Coding & Logic
Fictional

GPT-5.6 Sol Pro is the same underlying model as [GPT-5.6 Sol](https://openrouter.ai/openai/gpt-5.6-sol), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. Learn more in OpenAI's docs: https://developers.openai.com/api/docs/guides/reasoning#reasoning-mode

Granular Pricing Matrix

Input Tokens (Prompt)$2.50 / 1M

Output Tokens (Completion)$15.00 / 1M

Pricing data via OpenRouter. Sync: 8/6/2026

Evaluate Competitors

VS Engine MatchupGPT-5.6 Sol Pro (batch) vs OpenAI: GPT-5.6 Luna VS Engine MatchupGPT-5.6 Sol Pro (batch) vs Google: Gemini 2.5 Pro (batch)VS Engine MatchupGPT-5.6 Sol Pro (batch) vs OpenAI: GPT-4.1 Nano VS Engine MatchupGPT-5.6 Sol Pro (batch) vs Google: Gemini 3.6 Flash (batch)VS Engine MatchupGPT-5.6 Sol Pro (batch) vs OpenAI: GPT-5.6 Luna Pro (batch)VS Engine MatchupGPT-5.6 Sol Pro (batch) vs OpenAI: GPT-5.6 Luna (batch)