Updated March 25, 2026· Based on independent benchmark data
Anthropic: Claude Opus 4 leads in intelligence with a score of 53.0 vs 48.5. xAI: Grok 4 is 5.0x cheaper at $3.00/1M tokens vs $15/1M. For speed, xAI: Grok 4 wins at 124 tok/s vs 48 tok/s.
| Metric | Anthropic: Claude Opus 4 | xAI: Grok 4 |
|---|---|---|
| Intelligence Score | 53.0 | 48.5 |
| Coding Score | 48.1 | 42.2 |
| Math Score | N/A | N/A |
| Speed (tok/s) | 48 tok/s | 124 tok/s |
| Latency (TTFT) | 11.42s | 15.96s |
| Input Price / 1M tokens | $15 | $3.00 |
| Output Price / 1M tokens | $75 | $15 |
| Context Window | 200K |
Anthropic: Claude Opus 4 outperforms xAI: Grok 4 on the Artificial Analysis intelligence index with a score of 53.0 compared to 48.5. For coding tasks, Anthropic: Claude Opus 4 has the edge with a coding score of 48.1 vs 42.2.
xAI: Grok 4 generates output significantly faster at 124 tok/s compared to Anthropic: Claude Opus 4's 48 tok/s, making it 2.6x faster for streaming responses. Time to first token is 11.42s for Anthropic: Claude Opus 4 vs 15.96s for xAI: Grok 4, which affects perceived responsiveness in interactive applications.
xAI: Grok 4 is more affordable at $3.00/1M input tokens ($15/1M output), while Anthropic: Claude Opus 4 costs $15/1M input ($75/1M output). That makes Anthropic: Claude Opus 4 5.0x more expensive per token, which can add up significantly at scale. For a typical workload of 100 requests per day at 2,000 tokens each, Anthropic: Claude Opus 4 would cost approximately $90.00/month vs $18.00/month for xAI: Grok 4 in input costs alone.
xAI: Grok 4 offers a larger context window at 256K tokens compared to Anthropic: Claude Opus 4's 200K.
Choose Anthropic: Claude Opus 4 when you need higher intelligence (53.0), stronger coding performance (48.1). Choose xAI: Grok 4 when you need faster output (124 tok/s), lower cost.
Anthropic: Claude Opus 4 scores higher on coding benchmarks (48.1 vs 42.2), making it the better choice for programming tasks.
xAI: Grok 4 is cheaper at $3.00/1M input tokens vs $15/1M for Anthropic: Claude Opus 4.
xAI: Grok 4 is faster, producing output at 124 tok/s compared to Anthropic: Claude Opus 4's 48 tok/s.
Yes, Anthropic: Claude Opus 4 supports image input. xAI: Grok 4 also supports images.
Benchmark data by Artificial Analysis
Data last synced: March 25, 2026
| 256K |
| Max Output Tokens | 32K | N/A |
| Input Modalities | Image + Text + File | Image + Text |
| Output Modalities | Text | Text |
| Free Tier | No | No |
xAI: Grok 4 has a larger context window at 256K compared to Anthropic: Claude Opus 4's 200K.
It depends on your priorities. Anthropic: Claude Opus 4 scores higher on intelligence (53.0), but xAI: Grok 4 may be better for specific use cases like budget-conscious projects or speed-critical applications.