LLM Reference

Claude 3.7 Sonnet vs GPT-4o (08-06)

Claude 3.7 Sonnet (2024) and GPT-4o (08-06) (2024) are frontier reasoning models from Anthropic and OpenAI. Claude 3.7 Sonnet ships a 200k-token context window, while GPT-4o (08-06) ships a 128k-token context window. On MMLU PRO, Claude 3.7 Sonnet leads by 5.6 pts. On pricing, GPT-4o (08-06) costs $2.50/1M 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.

Pick Claude 3.7 Sonnet for general evaluation; GPT-4o (08-06) is better when coding workflow support matters more.

Decision scorecard

Local evidence first
SignalClaude 3.7 SonnetGPT-4o (08-06)
Best forreasoning-heavy apps, multimodal apps, and tool-calling agentsmultimodal apps and provider-routed production
Decision fitCoding, RAG, and AgentsCoding, RAG, and Agents
Context window200k128k
Cheapest output$15/1M tokens$10/1M tokens
Provider routes6 tracked3 tracked
Shared benchmarksMMLU PRO leader2 shared

Decision tradeoffs

Choose Claude 3.7 Sonnet when...
  • Claude 3.7 Sonnet holds a shared-benchmark lead on MMLU PRO, ahead by 5.6 points.
  • Claude 3.7 Sonnet has the larger context window for long prompts, retrieval packs, or transcript analysis.
  • Claude 3.7 Sonnet has broader tracked provider coverage for fallback and route flexibility.
  • Claude 3.7 Sonnet uniquely exposes Reasoning and JSON / Tool use in local model data.
  • Local decision data tags Claude 3.7 Sonnet for Coding, RAG, and Agents.
Choose GPT-4o (08-06) when...
  • GPT-4o (08-06) has the lower cheapest tracked output price at $10/1M tokens.
  • Local decision data tags GPT-4o (08-06) 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 GPT-4o (08-06)

Claude 3.7 Sonnet

$6,150

Cheapest tracked route/tier: GCP Vertex AI

GPT-4o (08-06)

$4,500

Cheapest tracked route/tier: OpenAI API

Estimated monthly gap: $1,650. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.

Switch friction

Claude 3.7 Sonnet -> GPT-4o (08-06)
  • Provider overlap exists on OpenRouter; start route-level A/B tests there.
  • GPT-4o (08-06) is $5/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
  • Check replacement coverage for Reasoning and JSON / Tool use before moving production traffic.
GPT-4o (08-06) -> Claude 3.7 Sonnet
  • Provider overlap exists on OpenRouter; start route-level A/B tests there.
  • Claude 3.7 Sonnet is $5/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
  • Claude 3.7 Sonnet adds Reasoning and JSON / Tool use in local capability data.

Specs

Specification
Released2024-03-042024-08-06
Context window200k128k
Parameters—1.76T (8x222B MoE)*
ArchitectureDecoder OnlyMixture of Experts
LicenseProprietaryProprietary
OpennessProprietaryProprietary
WeightsNot releasedNot released
CodeUnknownUnknown
Commercial useCommercial use: conditionalCommercial use: conditional
Knowledge cutoff2024-112023-10

Pricing and availability

Pricing attributeClaude 3.7 SonnetGPT-4o (08-06)
Input price$3/1M tokens$2.50/1M tokens
Output price$15/1M tokens$10/1M tokens
Providers
Snowflake CortexGCP Vertex AIReplicate APIOpenRouterAWS BedrockAnthropic
OpenAI APISalesforce Einstein Generative AIOpenRouter

Capabilities

CapabilityClaude 3.7 SonnetGPT-4o (08-06)
VisionYesYes
MultimodalYesYes
ReasoningYesNo
JSON / Tool useYesNo
Structured outputsYesYes
Code executionYesYes
IDE integrationNoNo
Computer useNoNo
Parallel agentsNoNo

Benchmarks

BenchmarkClaude 3.7 SonnetGPT-4o (08-06)
MMLU PRO80.374.7
Aider Polyglot64.923.1

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