Cost Comparison (1000 input + 500 output tokens, 100 requests/day)
Grok 3
o1 Pro
Cost Differences
o1 Pro costs more than Grok 3
Feature Comparison
| Feature | Grok 3 | o1 Pro |
|---|---|---|
| Provider | xAI | OpenAI |
| Input Price | $3.00/1M tokens | $150.00/1M tokens |
| Output Price | $15.00/1M tokens | $600.00/1M tokens |
| Context Window | 131,072 tokens | 200,000 tokens |
| Max Output | 131,072 tokens | 100,000 tokens |
| Category | flagship | flagship |
| Capabilities | textvisionreasoningcode | textvisioncodereasoning |
| Release Date | 2/17/2025 | 12/17/2024 |
Grok 3 vs o1 Pro: Which Should You Choose?
Choosing between Grok 3 and o1 Pro depends on your priorities: cost efficiency, context length, or raw capability. Grok 3 is the more affordable option at $3.00/1M input tokens — 98% cheaper than o1 Pro. Meanwhile, o1 Pro offers a significantly larger context window at 200,000 tokens vs 131,072 for Grok 3.
These models come from different providers — xAI and OpenAI — which means different API ecosystems, SDKs, rate limits, and terms of service. If you're already integrated with xAI, switching to OpenAIinvolves migration effort beyond just pricing. Factor in your existing infrastructure when deciding.
Both models are in the flagship category, making this a direct head-to-head comparison. At scale — say 10,000 requests per day — the cost difference adds up: Grok 3 would save you roughly $131,850.00/month compared to o1 Pro. For startups and indie developers, that difference can be significant.
Output costs matter too. Grok 3 charges $15.00/1M output tokens vs $600.00 for o1 Pro. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. Grok 3 has the edge here at $15.00/1M output tokens.
Multimodal capabilities: Both models support vision (image understanding), so you can send images alongside text prompts with either option.
Best Use Cases
Choose Grok 3 when:
- • Budget is a primary concern
- • You need longer outputs (up to 131,072 tokens)
- • You're already using xAI's API ecosystem
Choose o1 Pro when:
- • You need a larger context window (200,000 tokens)
- • You're already using OpenAI's API ecosystem
Try Different Scenarios
Use the calculator below to see how costs change with different usage patterns
Grok 3 (xAI)
o1 Pro (OpenAI)
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