Grok Code Fast 1 vs o1

Pricing, capabilities and platforms side by side. Prices are as of the "Pricing checked" date in the table.

Grok Code Fast 1

<cite index="2-1">Released in late August 2025, the xAI Grok Code Fast 1 model is a coding-focused AI model that excels at common, high-volume coding task and is designed especially for agentic coding workflows.</cite> <cite index="1-6,1-7,1-8">Built from scratch with a brand-new model architecture, it was trained on a pre-training corpus rich with programming-related content, and curated high-quality datasets that reflect real-world pull requests and coding tasks.</cite> <cite index="1-23">The model is particularly adept at TypeScript, Python, Java, Rust, C++, and Go.</cite> <cite index="1-13">The model is generally available via the xAI API, priced at $0.20 / 1M input tokens, $1.50 / 1M output tokens, and $0.02 / 1M cached input tokens.</cite>

o1

o1 is built around a single insight: some problems need deliberate, multi-step reasoning rather than pattern matching at scale. Before generating an answer, the model works through logic chains internally—visible to you—on math proofs, bug-heavy code, and scientific questions where a wrong answer is worse than a slow one. It costs roughly 2–3x more per token than GPT-4o and takes longer to respond, making it a specialist tool rather than a daily driver. The real catch is knowing when you actually need it; using o1 for a summarization task or casual question is like hiring a surgeon to tie your shoes.

Specs come from each tool's own site and docs (how we test). AIDiveForge is editorially independent.