Claude Sonnet 4.6 vs DeepSeek R1

Claude Sonnet 4.6 vs DeepSeek R1: DeepSeek R1 is cheaper by 64% on average. Claude Sonnet 4.6 from Azure AI Foundry (1,000,000-token context, reasoning, tool calls) vs. DeepSeek R1 from Azure AI Foundry (128,000-token context, reasoning). Use Agent Command Center to A/B both in shadow mode and pick the winner per workload.

Side-by-side cost

Live workload comparison

Same workload run through both models. The cheaper one is highlighted.

3,000
01,000,000
400
064,000
5,000
01,000,000
Azure AI Foundry
$2,283/mo
Input $3.00/M · Output $15.00/M
Azure AI Foundry
$945/mo
Input $1.35/M · Output $5.40/M
At this workload, DeepSeek R1 is 59% cheaper than Claude Sonnet 4.6 — a savings of $1,338/month ($16,053/year).
Production recipe — Agent Command Center
strategy: cost-optimized
primary:
  model: deepseek-r1
  provider: azure-ai-foundry
fallback:
  model: claude-sonnet-4-6
  provider: azure-ai-foundry
shadow: { sample_rate: 0.05 }   # mirror 5% of traffic to compare quality live
Claude Sonnet 4.6 DeepSeek R1
Input price $3.00/M $1.35/M
Output price $15.00/M $5.40/M
Context window 1,000,000 128,000
Max output 64,000 8,192
Function calling
Vision
Audio input
Reasoning
Prompt caching
Structured output
Pricing verified May 12, 2026 May 12, 2026
Cheaper option
~64% cheaper than Claude Sonnet 4.6
Larger context
1,000,000 tokens
More capabilities
5 of 6 capability flags advertised

Benchmark comparison

Side-by-side public benchmark scores. Greener bar = winner.

Chatbot Arena ELOgeneral
Claude Sonnet 4.6
1,466
DeepSeek R1
1,361
MATH-500math
Claude Sonnet 4.6
DeepSeek R1
97.3%
τ-bench (retail)agent
Claude Sonnet 4.6
91.7%
DeepSeek R1
MMLUgeneral
Claude Sonnet 4.6
89.3%
DeepSeek R1
90.8%
GPQA Diamondreasoning
Claude Sonnet 4.6
89.9%
DeepSeek R1
71.5%
HumanEvalcode
Claude Sonnet 4.6
DeepSeek R1
89.7%
MMLU-Proreasoning
Claude Sonnet 4.6
DeepSeek R1
84.0%
AIME 2024math
Claude Sonnet 4.6
DeepSeek R1
79.8%
SWE-bench Verifiedagent
Claude Sonnet 4.6
79.6%
DeepSeek R1
49.2%
MMMU-Promultimodal
Claude Sonnet 4.6
74.5%
DeepSeek R1
LiveCodeBenchcode
Claude Sonnet 4.6
DeepSeek R1
65.9%
ARC-AGI-2reasoning
Claude Sonnet 4.6
58.3%
DeepSeek R1
Aider Polyglotcode
Claude Sonnet 4.6
DeepSeek R1
57.0%
Humanity's Last Examreasoning
Claude Sonnet 4.6
33.2%
DeepSeek R1