Grok 4.1 Fast vs o1-mini
Compare xAI and OpenAI AI models
Cost Comparison (1000 input + 500 output tokens, 100 requests/day)
Grok 4.1 Fast
o1-mini
Cost Differences
o1-mini costs more than Grok 4.1 Fast
Feature Comparison
| Feature | Grok 4.1 Fast | o1-mini |
|---|---|---|
| Provider | xAI | OpenAI |
| Input Price | $0.20/1M tokens | $1.10/1M tokens |
| Output Price | $0.50/1M tokens | $4.40/1M tokens |
| Context Window | 2,000,000 tokens | 128,000 tokens |
| Max Output | 131,072 tokens | 65,536 tokens |
| Category | efficient | reasoning |
| Capabilities | textreasoningcode | textreasoning |
| Release Date | 1/15/2026 | 9/12/2024 |
Grok 4.1 Fast vs o1-mini: Which Should You Choose?
Choosing between Grok 4.1 Fast and o1-mini depends on your priorities: cost efficiency, context length, or raw capability. Grok 4.1 Fast is the more affordable option at $0.20/1M input tokens — 82% cheaper than o1-mini. Meanwhile, Grok 4.1 Fast offers a significantly larger context window at 2,000,000 tokens vs 128,000 for o1-mini.
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.
These models target different tiers: Grok 4.1 Fast is a efficient model while o1-mini is reasoning. This means they're optimized for different workloads. o1-mini targets more demanding workloads, while Grok 4.1 Fast provides a cost-effective option for everyday tasks.
Output costs matter too. Grok 4.1 Fast charges $0.50/1M output tokens vs $4.40 for o1-mini. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. Grok 4.1 Fast has the edge here at $0.50/1M output tokens.
Best Use Cases
Choose Grok 4.1 Fast when:
- • Budget is a primary concern
- • You need a larger context window (2,000,000 tokens)
- • You need more capabilities (code)
- • You need longer outputs (up to 131,072 tokens)
- • You're already using xAI's API ecosystem
- • You're running high-volume, latency-sensitive workloads
Choose o1-mini when:
- • 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 4.1 Fast (xAI)
o1-mini (OpenAI)
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