 Grok Code Fast 1 |  Sonar | |
|---|---|---|
Model Provider The organization behind this AI's development | XAI | Perplexity |
Input Context Window Maximum input tokens this model can process at once | 256K tokens | 127.1K tokens |
Output Token Limit Maximum output tokens this model can generate at once | 10K tokens | Not specified tokens |
Release Date When this model first became publicly available | August 26, 2025 9 days ago August 26th, 2025 | January 27, 2025 7 months ago January 27th, 2025 |
Grok Code Fast 1 | Sonar | |
|---|---|---|
Input Types Supported input formats | 📝Text | 📝Text🖼️Image |
Output Types Supported output formats | 📝Text | 📝Text |
Tokenizer Text encoding system | Grok | Other |
Key Features Advanced capabilities | ✓Function Calling✓Structured Output✓Reasoning ModeContent Moderation | Function CallingStructured OutputReasoning ModeContent Moderation |
| Grok Code Fast 1 | Sonar | |
|---|---|---|
Input Token Cost Cost per million input tokens | $0.20 per million tokens | $1.00 per million tokens |
Output Token Cost Cost per million outut tokens | $1.50 per million tokens | $1.00 per million tokens |
| Grok Code Fast 1 | Sonar | |
|---|---|---|
MMLU Measures knowledge across 57 subjects like law, math, history, and science | Benchmark not available. | Benchmark not available. |
MMMU Measures understanding of combined text and images across various domains | Benchmark not available. | Benchmark not available. |
HellaSwag Measures common sense reasoning by having models complete sentences about everyday situations | Benchmark not available. | Benchmark not available. |
Grok Code Fast 1 by XAI can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 256K token context window. Very affordable at $0.20/M input and $1.50/M output tokens. Released August 26th, 2025.Sonar by Perplexity understands both text and images. It can handle standard conversations with its 127.1K token context window. Reasonably priced at $1.00/M input and $1.00/M output tokens. Released January 27th, 2025.Compare your models with top performers across different categories
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