Grok 4.5 vs GPT-5 Mini
Compare Grok 4.5 and GPT-5 Mini side-by-side. See comparisons of price, response speed, accuracy, and file support to choose the best model for your task.
Overview
Grok 4.5 vs GPT-5 Mini Overview
Everything you need to know about these AI models, including capabilities, performance, pricing, and technical details.
xAI / Grok 4.5
proDescription
xAI's frontier model, built for coding, agentic tasks, and knowledge work rather than conversation. Grok 4.5 reads text and images, searches both the web and X, and lets you set how hard it thinks before answering. Its knowledge runs to February 2026, unusually recent. The tradeoff is context: its window is half the size of the previous Grok generation.
OpenAI / GPT-5 Mini
proDescription
OpenAI's smaller, faster GPT-5 model is built for well-defined tasks at low cost. GPT-5 Mini handles coding, writing, and analysis with the same reasoning-effort control as its larger siblings, at a fraction of the price. It reads text and images across a 400,000-token context. Its knowledge is dated, and OpenAI now points to newer models, but it remains a capable, economical everyday option.
About
About
Capabilities
Capabilities
Comparison
Why Use Grok 4.5 and GPT-5 Mini?
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xAI / Grok 4.5
proCoding and Agentic Tasks
xAI was built specifically for coding and agentic tasks, trained on new datasets spanning science, engineering, and maths. Aimed at multi-file work across repositories.
Reasoning Effort You Control
Reasoning runs at low, medium, or high, so you decide how much thinking each request gets. Function calling and code execution are supported, which is what agentic work actually depends on.
A Mid-Size Context Window
Handles 500,000 tokens, roughly 375,000 words. Comfortable for large codebases and long document sets, though half the window the previous Grok generation offered, so whole-monorepo work may not fit.
Knowledge Work and Documents
xAI positions it for knowledge work alongside coding, which means long documents, structured reasoning, and the kind of writing that has to survive review rather than just read well.
Web Search and X Search
xAI states plainly that Grok knows nothing beyond its training data, and provides server-side Web Search and X Search tools to fix that. X Search is unique to this model.
Text and Image Input
Reads text and images, in jpg or png, in any order alongside your prompt. Send screenshots, diagrams, or scanned pages. Audio and video are not listed as supported inputs.
OpenAI / GPT-5 Mini
proCost-Efficient Coding
Built for coding help at scale rather than the hardest engineering problems. Handles routine generation, review, and explanation reliably, and its low price makes it suited to high-frequency use inside applications.
Adjustable Reasoning Effort
Reasoning effort runs from minimal through low, medium, and high, so you trade thinking time against cost per request. Reasoning tokens are supported, so the model can work through a problem first.
Room For Long Documents
A 400,000-token context window, roughly 300,000 words. Enough for long reports, large contracts, and substantial codebases in one session, though short of the million-token frontier models.
Everyday Writing
Handles emails, summaries, documentation, and general content reliably. Aimed at clear, correct output on ordinary writing tasks rather than the polished long-form work of the flagship models.
Analysis On Dated Knowledge
Its knowledge belongs to the GPT-5 generation, with a September 2024 cutoff. That is dated, so time-sensitive work needs live sources rather than the model's own training.
Text And Image Input
Reads text and images in the same prompt, so you can send screenshots, charts, or scanned pages alongside your question. Output is text only.
Why Aymo
Why chat with Grok 4.5 and GPT-5 Mini on Aymo AI?
Aymo gives you more than access to Grok 4.5 and GPT-5 Mini—it provides a complete multi-model AI workspace designed for productivity.
Compare Responses
See how Grok 4.5 and GPT-5 Mini performs alongside Claude, Gemini, Grok, and other leading AI models.
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