GPT-4.1 nano vs Grok Code Fast 1
Compare OpenAI and xAI AI models
Cost Comparison (1000 input + 500 output tokens, 100 requests/day)
GPT-4.1 nano
Grok Code Fast 1
Cost Differences
Grok Code Fast 1 costs more than GPT-4.1 nano
Feature Comparison
| Feature | GPT-4.1 nano | Grok Code Fast 1 |
|---|---|---|
| Provider | OpenAI | xAI |
| Input Price | $0.10/1M tokens | $0.20/1M tokens |
| Output Price | $0.40/1M tokens | $1.50/1M tokens |
| Context Window | 128,000 tokens | 256,000 tokens |
| Max Output | 8,192 tokens | 32,768 tokens |
| Category | efficient | standard |
| Capabilities | text | textcodereasoning |
| Release Date | 4/14/2025 | 2/1/2026 |
GPT-4.1 nano vs Grok Code Fast 1: Which Should You Choose?
Choosing between GPT-4.1 nano and Grok Code Fast 1 depends on your priorities: cost efficiency, context length, or raw capability. GPT-4.1 nano is the more affordable option at $0.10/1M input tokens — 50% cheaper than Grok Code Fast 1. Meanwhile, Grok Code Fast 1 offers a significantly larger context window at 256,000 tokens vs 128,000 for GPT-4.1 nano.
These models come from different providers — OpenAI and xAI — which means different API ecosystems, SDKs, rate limits, and terms of service. If you're already integrated with OpenAI, switching to xAIinvolves migration effort beyond just pricing. Factor in your existing infrastructure when deciding.
These models target different tiers: GPT-4.1 nano is a efficient model while Grok Code Fast 1 is standard. This means they're optimized for different workloads. Grok Code Fast 1 targets more demanding workloads, while GPT-4.1 nano provides a cost-effective option for everyday tasks.
Output costs matter too. GPT-4.1 nano charges $0.40/1M output tokens vs $1.50 for Grok Code Fast 1. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. GPT-4.1 nano has the edge here at $0.40/1M output tokens.
Best Use Cases
Choose GPT-4.1 nano when:
- • Budget is a primary concern
- • You're already using OpenAI's API ecosystem
- • You're running high-volume, latency-sensitive workloads
Choose Grok Code Fast 1 when:
- • You need a larger context window (256,000 tokens)
- • You need more capabilities (code, reasoning)
- • You need longer outputs (up to 32,768 tokens)
- • You're already using xAI's API ecosystem
Try Different Scenarios
Use the calculator below to see how costs change with different usage patterns
GPT-4.1 nano (OpenAI)
Grok Code Fast 1 (xAI)
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