Grok 3 Mini Beta vs GPT-5
Compare Grok 3 Mini Beta by xAI against GPT-5 by OpenAI, context windows of 131K vs 400K, tested across 8 shared challenges. Updated April 2026.
Which is better, Grok 3 Mini Beta or GPT-5?
Grok 3 Mini Beta and GPT-5 are both competitive models. Grok 3 Mini Beta costs $0.4/M input tokens vs $1.25/M for GPT-5. Context windows: 131K vs 400K tokens. Compare their real outputs side by side below.
Key Differences Between Grok 3 Mini Beta and GPT-5
Grok 3 Mini Beta is made by xai while GPT-5 is from openai. Grok 3 Mini Beta has a 131K token context window compared to GPT-5's 400K. On pricing, Grok 3 Mini Beta costs $0.4/M input tokens vs $1.25/M for GPT-5.
Our Verdict
GPT-5
Grok 3 Mini BetaRunner-up
No community votes yet. On paper, GPT-5 has the edge — bigger model tier, newer, bigger context window.
Grok 3 Mini Beta is 13x cheaper per token — worth considering if cost matters.
Slight edge
vsAsk them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
Model Similarity Index
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
Devstral M / S
95.7%
Qwen3 Coder / Flash
95.6%
GPT-5.4 / Mini
93.3%
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
Free preview13 of 58 slides
FAQ