GPT-6 Sol vs Grok 4.7

Two September flagships a day apart: Grok 4.7 undercuts GPT-6 Sol by half on output, and GPT-6 Sol answers with twice the context window.

What the numbers say

• Grok 4.7 is about 1.7x cheaper on output tokens (72.0 vs 120 credits per 1M).
• GPT-6 Sol takes noticeably more context: 1.1M vs 500K tokens.
• GPT-6 Sol is the newer release (September 2026 vs September 2026).

Derived from the live registry Zeplik routes and bills against. Credits: 1 credit = $0.10, computed from the raw provider rate with a 1.20x margin.

Side by side

Try both on Zeplik

The honest answer to most model debates is to run your own prompt on both. Zeplik puts GPT-6 Sol and Grok 4.7 in the same chat, so you can switch mid-conversation and compare answers on the work you actually do.

Frequently asked questions

What is the difference between GPT-6 Sol and Grok 4.7?

Grok 4.7 is about 1.7x cheaper on output tokens (72.0 vs 120 credits per 1M). GPT-6 Sol takes noticeably more context: 1.1M vs 500K tokens. GPT-6 Sol is the newer release (September 2026 vs September 2026).

Is GPT-6 Sol or Grok 4.7 cheaper?

Grok 4.7 is cheaper: 72.0 credits per million output tokens against 120. 1 credit = $0.10, computed from the raw provider rate with a 1.20x margin.

Which has the larger context window, GPT-6 Sol or Grok 4.7?

GPT-6 Sol, at 1.1M tokens against 500K.

Can I use both GPT-6 Sol and Grok 4.7 on Zeplik?

Yes. Zeplik is a multi-model chat, so both sit behind one account and you can switch between them mid-conversation to compare answers on your own prompt.

Do GPT-6 Sol and Grok 4.7 need a paid plan?

Both need a paid plan (Plus or above). Usage is then billed in credits from your monthly allowance.

Related comparisons

• Claude Opus 5.5 vs GPT-6 SolBoth shipped on the same day at adjacent tiers: whether Opus 5.5's depth is worth double GPT-6 Sol's price when their context windows are within five percent of each other.
• Claude Opus 5.5 vs Grok 4.7The two newest flagships in the catalogue, a day apart: Opus 5.5 doubles Grok 4.7's context and asks roughly four times as much per output token.
• GPT-6 Sol vs GPT-5.6 SolThe generational swap with no price to argue about: GPT-6 Sol replaces GPT-5.6 Sol at an identical $2 in and $10 out, with the same 1,050,000-token window.
• Grok 4.7 vs Grok 4.6The newest Grok against the one it replaces: twenty percent cheaper on both input and output, with the same 500,000-token window.
• GPT-6 Sol vs GPT-6 AstraThe upgrade decision inside the GPT-6 line: Astra costs five times Sol for the same 1,050,000-token window, so the question is which work is hard enough to need it.
• Grok 4.7 vs Claude Sonnet 5Grok 4.7 answers for roughly half Sonnet 5's output price; Sonnet 5 answers with twice the context. The trade is unusually clean.