Claude Sonnet 4.6 vs DeepSeek R1
How Claude Sonnet 4.6 (Anthropic) and DeepSeek R1 (DeepSeek) compare on price and capabilities — and how to use either on anyAInow without a subscription.
Claude Sonnet 4.6
Balanced
DeepSeek R1
Reasoning
Provider
Anthropic
DeepSeek
Best for
Balanced
Reasoning
Reads images
Yes
No
GPQA Diamond
89.9%
81%
SWE-Bench Verified
79.6%
44.6%
MMLU-Pro
—
85%
Price
from $30 / 1M
from $10 / 1M
Subscription
None
None
Benchmark source: llm-stats.com, as of 28 Jun 2026. Higher is better; figures are publisher-reported where not independently verified.
Claude Sonnet 4.6 or DeepSeek R1?
Claude Sonnet 4.6 is a balanced-tier model, while DeepSeek R1 is reasoning-tier. DeepSeek R1 is the more cost-efficient of the two. Claude Sonnet 4.6 can also read image inputs, while DeepSeek R1 is text-only. On the GPQA Diamond reasoning benchmark, Claude Sonnet 4.6 leads 89.9% to 81%. On anyAInow you can use either — or run both side by side to see which answers your prompts better — pay-as-you-go with no subscription.