Grok 2 vs o1

Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.

o1 by OpenAI wins on 11 of 15 benchmarks against Grok 2 by xAI, which leads on 4. This head-to-head comparison covers coding, math, reasoning, speed, and pricing metrics from our benchmark data.

Category-by-Category Breakdown

General Intelligence: In general intelligence, o1 scores 1360 on Chatbot Arena ELO compared to Grok 2's 1250, while o1 scores 82.0% on MMLU-Pro compared to Grok 2's 68.0%, while o1 scores 47.0% on SimpleQA compared to Grok 2's 36.4%.

Coding: In coding, o1 scores 89.0% on HumanEval+ compared to Grok 2's 78.0%, while o1 scores 48.9% on SWE-bench Verified compared to Grok 2's 28.0%, while o1 scores 55.0% on LiveCodeBench compared to Grok 2's 32.0%.

Math: In math, o1 scores 94.8% on MATH compared to Grok 2's 70.0%, while o1 scores 97.5% on GSM8K compared to Grok 2's 88.0%.

Reasoning: In reasoning, o1 scores 77.3% on GPQA Diamond compared to Grok 2's 45.0%, while o1 scores 32.0% on ARC-AGI compared to Grok 2's 15.0%.

Context: In context, o1 scores 200K on Context Length compared to Grok 2's 131K.

Pricing Comparison

Grok 2 costs $2.0/1M input tokens and $10.0/1M output tokens, while o1 costs $15.0/1M input and $60.0/1M output. Grok 2 is the more affordable option for API usage.

Speed Comparison

Grok 2 generates output at 80 tok/s compared to o1's 35 tok/s, and the time to first token is 350 ms for Grok 2 versus 1000 ms for o1. Grok 2 delivers faster throughput.

Verdict

For developers prioritizing affordability and speed, Grok 2 has the edge. For those who value coding and general intelligence and math, o1 is the stronger choice.

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Grok 2 vs o1 — FAQ

Which is better, Grok 2 or o1?

o1 wins on more benchmarks overall (11 vs 4). However, the best choice depends on your specific needs — each model excels in different areas.

How does Grok 2 compare to o1 for coding?

o1 is better for coding, scoring 48.9% on SWE-bench Verified compared to 28.0%. SWE-bench tests real-world software engineering by resolving actual GitHub issues.

Is Grok 2 cheaper than o1?

Yes, Grok 2 is cheaper. Grok 2 costs $2.0/1M input and $10.0/1M output tokens. o1 costs $15.0/1M input and $60.0/1M output tokens.

Which is faster, Grok 2 or o1?

Grok 2 is faster, generating output at 80 tok/s compared to 35 tok/s. Faster output speed means shorter wait times for API responses.

What benchmarks does the Grok 2 vs o1 comparison cover?

This comparison covers 15 benchmarks including Chatbot Arena ELO, MMLU-Pro, HumanEval+, SimpleQA, MATH, GPQA Diamond, SWE-bench Verified, Output Speed, and more. Metrics span general intelligence, coding, math, reasoning, speed, and cost categories.