Claude Sonnet 4.6 vs Grok 4.5
Anthropic against xAI, costed on the same three workloads. Grok 4.5 is cheaper on all three workloads.
Monthly bill, side by side
| Workload | Claude Sonnet 4.6 | Grok 4.5 | Difference |
|---|---|---|---|
| Support chatbot 2,500 six-turn conversations a day |
$12,083 | $6,435 | $5,648 (1.9×) |
| Document summariser 1,000 single-shot summaries a day |
$1,458 | $876 | $582 (1.7×) |
| Coding agent 200 twelve-turn sessions a day |
$8,424 | $4,896 | $3,528 (1.7×) |
No prompt caching and no batch discount on either side, so the comparison is like for like. Both figures assume 30 days a month.
The rate cards
| Claude Sonnet 4.6 | Grok 4.5 | |
|---|---|---|
| Input, per 1M tokens | $3 | $2 |
| Output, per 1M tokens | $15 | $6 |
| Cached input | $0.3 | $0.5 |
| Context window | 1M | 500K |
| Maximum output | 64K | 500K |
| Reasoning model | yes | yes |
| Vision | yes | yes |
Run this comparison on your own numbers
Full detail: Claude Sonnet 4.6 pricing · Grok 4.5 pricing