Claude Sonnet 4.6 vs Grok 4
Benchmarks, API pricing and specs, head to head. Data updated 2026-06-10.
Claude Sonnet 4.6
Anthropic · Apr 2026
Anthropic's mid-tier workhorse: near-Opus capability at $3/$15, and the leader on the Finance Agent benchmark.
Grok 4
xAI · Jul 2025
xAI's mid-2025 flagship, trained on the 200K-GPU Colossus cluster — a math and science reasoning standout of its generation.
The verdict
These two models don't yet share verified results on the benchmarks we track, so judge them on specs, pricing and intended use. Claude Sonnet 4.6 also takes 1M of context versus 256K for Grok 4.
Specs & pricing
| Claude Sonnet 4.6 | Grok 4 | |
|---|---|---|
| modhub Index | — | — |
| Input price / 1M | $3 | $3 |
| Output price / 1M | $15 | $15 |
| Context window | 1M | 256K |
| Max output | 64K | — |
| Open weights | no | no |
| Reasoning model | yes | yes |
| Multimodal input | text, image | text, image |
| Knowledge cutoff | Jan 2026 | Jul 2025 |
| Released | Apr 2026 | Jul 2025 |
| Example monthly cost* | $52.50 | $52.50 |
* 10M input + 1.5M output tokens per month at list prices, no caching. Green = better value on that row.
Frequently asked questions
- Which is better, Claude Sonnet 4.6 or Grok 4?
- These two models don't yet share verified results on the benchmarks we track, so judge them on specs, pricing and intended use. Claude Sonnet 4.6 also takes 1M of context versus 256K for Grok 4.
- Which is cheaper, Claude Sonnet 4.6 or Grok 4?
- Claude Sonnet 4.6 costs $3/$15 per million input/output tokens, while Grok 4 costs $3/$15. For a typical workload of 10M input and 1.5M output tokens per month, that's $52.50 versus $52.50.
- Which model is better for coding, Claude Sonnet 4.6 or Grok 4?
- We don't yet track SWE-bench Verified results for both models; check their individual pages for coding-related scores.