Grok Code Fast 1 vs Llama 3.1 405B
Compare xAI and Meta (via Together AI) AI models
Cost Comparison (1000 input + 500 output tokens, 100 requests/day)
Grok Code Fast 1
Llama 3.1 405B
Cost Differences
Llama 3.1 405B costs more than Grok Code Fast 1
Feature Comparison
| Feature | Grok Code Fast 1 | Llama 3.1 405B |
|---|---|---|
| Provider | xAI | Meta (via Together AI) |
| Input Price | $0.20/1M tokens | $3.50/1M tokens |
| Output Price | $1.50/1M tokens | $3.50/1M tokens |
| Context Window | 256,000 tokens | 128,000 tokens |
| Max Output | 32,768 tokens | 32,768 tokens |
| Category | standard | flagship |
| Capabilities | textcodereasoning | textcodereasoning |
| Release Date | 2/1/2026 | 7/23/2024 |
Grok Code Fast 1 vs Llama 3.1 405B: Which Should You Choose?
Choosing between Grok Code Fast 1 and Llama 3.1 405B depends on your priorities: cost efficiency, context length, or raw capability. Grok Code Fast 1 is the more affordable option at $0.20/1M input tokens — 94% cheaper than Llama 3.1 405B. Meanwhile, Grok Code Fast 1 offers a significantly larger context window at 256,000 tokens vs 128,000 for Llama 3.1 405B.
These models come from different providers — xAI and Meta (via Together AI) — which means different API ecosystems, SDKs, rate limits, and terms of service. If you're already integrated with xAI, switching to Meta (via Together AI)involves migration effort beyond just pricing. Factor in your existing infrastructure when deciding.
These models target different tiers: Grok Code Fast 1 is a standard model while Llama 3.1 405B is flagship. This means they're optimized for different workloads. Llama 3.1 405B targets more demanding workloads, while Grok Code Fast 1 provides a cost-effective option for everyday tasks.
Output costs matter too. Grok Code Fast 1 charges $1.50/1M output tokens vs $3.50 for Llama 3.1 405B. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. Grok Code Fast 1 has the edge here at $1.50/1M output tokens.
Best Use Cases
Choose Grok Code Fast 1 when:
- • Budget is a primary concern
- • You need a larger context window (256,000 tokens)
- • You're already using xAI's API ecosystem
Choose Llama 3.1 405B when:
- • You're already using Meta (via Together AI)'s API ecosystem
Try Different Scenarios
Use the calculator below to see how costs change with different usage patterns
Grok Code Fast 1 (xAI)
Llama 3.1 405B (Meta (via Together AI))
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