LLM Reference

Claude 3.7 Sonnet vs DeepSeek R1

Claude 3.7 Sonnet (2024) and DeepSeek R1 (2025) are frontier-tier reasoning models from Anthropic and DeepSeek. Claude 3.7 Sonnet ships a 200k-token context window, while DeepSeek R1 ships a 128k-token context window. On SWE-bench Verified, Claude 3.7 Sonnet leads by 21.1 pts. On pricing, DeepSeek R1 costs $0.10/1M input tokens versus $3/1M for the alternative. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.

DeepSeek R1 is ~2900% cheaper at $0.10/1M; pay for Claude 3.7 Sonnet only for coding workflow support.

Decision scorecard

Local evidence first
SignalClaude 3.7 SonnetDeepSeek R1
Best forreasoning-heavy apps, multimodal apps, and tool-calling agentsreasoning-heavy apps and provider-routed production
Decision fitCoding, RAG, and AgentsCoding, RAG, and Agents
Context window200k128k
Cheapest output$15/1M tokens$0.30/1M tokens
Provider routes6 tracked14 tracked
Shared benchmarksSWE-bench Verified leader3 shared

Decision tradeoffs

Choose Claude 3.7 Sonnet when...
  • Claude 3.7 Sonnet holds a shared-benchmark lead on SWE-bench Verified, ahead by 21.1 points.
  • Claude 3.7 Sonnet has the larger context window for long prompts, retrieval packs, or transcript analysis.
  • Claude 3.7 Sonnet uniquely exposes Vision, Multimodal, and JSON / Tool use in local model data.
  • Local decision data tags Claude 3.7 Sonnet for Coding, RAG, and Agents.
Choose DeepSeek R1 when...
  • DeepSeek R1 has the lower cheapest tracked output price at $0.30/1M tokens.
  • DeepSeek R1 has broader tracked provider coverage for fallback and route flexibility.
  • Local decision data tags DeepSeek R1 for Coding, RAG, and Agents.

Monthly cost at traffic

Estimate token spend from the cheapest tracked input and output route or tier on this page.

Lower estimate DeepSeek R1

Claude 3.7 Sonnet

$6,150

Cheapest tracked route/tier: GCP Vertex AI

DeepSeek R1

$155

Cheapest tracked route/tier: Bitdeer AI

Estimated monthly gap: $5,995. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.

Switch friction

Claude 3.7 Sonnet -> DeepSeek R1
  • Provider overlap exists on OpenRouter, AWS Bedrock, and Replicate API; start route-level A/B tests there.
  • DeepSeek R1 is $14.70/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
  • Check replacement coverage for Vision, Multimodal, and JSON / Tool use before moving production traffic.
DeepSeek R1 -> Claude 3.7 Sonnet
  • Provider overlap exists on GCP Vertex AI, Replicate API, and OpenRouter; start route-level A/B tests there.
  • Claude 3.7 Sonnet is $14.70/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
  • Claude 3.7 Sonnet adds Vision, Multimodal, and JSON / Tool use in local capability data.

Specs

Specification
Released2024-03-042025-01-20
Context window200k128k
Parameters—671B, 37B Active
ArchitectureDecoder OnlyDecoder Only
LicenseProprietaryMITOSI-approved
OpennessProprietaryOpen source
WeightsNot releasedAvailable
CodeUnknownUnknown
Commercial useCommercial use: conditionalCommercial use: permitted
Knowledge cutoff2024-112023-12

Pricing and availability

Pricing attributeClaude 3.7 SonnetDeepSeek R1
Input price$3/1M tokens$0.10/1M tokens
Output price$15/1M tokens$0.30/1M tokens
Providers
Snowflake CortexGCP Vertex AIReplicate APIOpenRouterAWS BedrockAnthropic
DeepSeek PlatformOpenRouterTogether AIFireworks AINVIDIA NIMMicrosoft Foundry

Capabilities

CapabilityClaude 3.7 SonnetDeepSeek R1
VisionYesNo
MultimodalYesNo
ReasoningYesYes
JSON / Tool useYesNo
Structured outputsYesYes
Code executionYesYes
IDE integrationNoNo
Computer useNoNo
Parallel agentsNoNo

Benchmarks

BenchmarkClaude 3.7 SonnetDeepSeek R1
SWE-bench Verified70.349.2
HumanEval93.089.9
Aider Polyglot64.956.9

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Last reviewed: 2026-07-26. Data sourced from public model cards and provider documentation.