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Spec
OpenAI o1
Grok 3
Intelligence index↑ better
Winner76
74
Speed↑ better
32 tok/s
Winner75 tok/s
Time to first token↓ better
12 s
Winner0.6 s
Context window↑ better
200k
Winner1M
Max output↑ better
Winner100k
16k
Input price↓ better
$15.00 / 1M tokens
Winner$3.00 / 1M tokens
Output price↓ better
$60.00 / 1M tokens
Winner$15.00 / 1M tokens
Blended price↓ better
$26.25 / 1M tokens
Winner$6.00 / 1M tokens
License
Proprietary
Proprietary
Input modalities
text, image
text, image
Output modalities
text
text
Benchmark showdown
MMLU
OpenAI o1
91.8
Grok 3
88.0
MMLU Pro
OpenAI o1
80.0
Grok 3
76.0
GPQA
OpenAI o1
78.0
Grok 3
62.0
MATH
OpenAI o1
94.8
Grok 3
88.5
HumanEval
OpenAI o1
92.4
Grok 3
90.0
Strengths, weaknesses and best-for
OpenAI o1
Strengths
- Tops MATH and GPQA leaderboards
- Self-checks its work
Weaknesses
- Very slow
- Very expensive
- Overkill for simple tasks
Best for
- Research problems
- Olympiad-level math
- Algorithm design
Grok 3
Strengths
- Live X data
- 1M context
- Strong reasoning mode
Weaknesses
- Smaller ecosystem
- Less tool-use tooling
Best for
- Real-time research
- Social-aware apps
Quick verdict
- Pick OpenAI o1 if you want it smarter.
- Pick Grok 3 if you want it faster, cheaper and longer context.
Auto-generated from the spec sheet. Always validate on your own evals.
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