Compare AI models

Specifications
Context window
1.05M
API pricing
Input price
$2.00$1.00
Output price
$10.00$2.00
Cached input price
$0.20$0.20
Cheapest input
$1.00OpenAI
Cheapest output
$5.00OpenAI

These models have no shared benchmark scores.

Overview
CompanyOpenAISpaceXAI
Release dateSep 22 2026Aug 28 2025
AccessClosedClosed
Model detailsView modelView model

Frequently asked questions

GPT-6 Sol and Grok Code Fast 1 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Grok Code Fast 1 is cheaper on both input and output: $1.00 vs $2.00 per million input tokens, and $2.00 vs $10.00 per million output tokens. Figures are base-tier rates. Grok Code Fast 1 shipped 390 days before GPT-6 Sol, so benchmark comparisons should account for the intervening progress.

Published specifications for these two models are limited — see each model page for the latest details.

Direct benchmark comparisons are unavailable — GPT-6 Sol and Grok Code Fast 1 don't publish scores on any of the same benchmarks.