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Claude Opus 4.1 vs DeepSeek R1

List-price comparison ·Claude Opus 4.1 details ·DeepSeek R1 details

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For a typical workload (100,000 requests / mo), DeepSeek R1 is the cheapest — 97% less than the priciest here ($146.00/mo vs $4,800.00/mo).

 Claude Opus 4.1DeepSeek R1
Input / 1M tokens$15.00$0.500
Output / 1M tokens$75.00$2.15
Typical request (1,200 in + 400 out)$0.048$0.0015
Context window200k tokens163,840 tokens
Max output32k tokens32,768 tokens
Quality score96/10084/100
TierFlagshipFlagship
ProviderAnthropicDeepSeek

Projected monthly cost

Requests / moClaude Opus 4.1DeepSeek R1
1,000$48.00$1.46
10,000$480.00$14.60
100,000$4,800.00$146.00
Open all in the calculator — adjust volume and token counts →

Claude Opus 4.1

Auto-synced from OpenRouter — no editorial write-up yet.

DeepSeek R1

Chain-of-thought reasoning competitive with closed flagship models on math and logic benchmarks, at open-weight pricing.

Emits long reasoning traces that inflate output token counts and cost — cap reasoning length or use a distilled variant for latency-sensitive paths.

More comparisons

Vendor list rates · per-request examples assume 1,200 input + 400 output tokens.