LLM Reference

Claude 3.7 Sonnet vs GPT-4o Search Preview

Claude 3.7 Sonnet (2024) and GPT-4o Search Preview (2025) are frontier reasoning models from Anthropic and OpenAI. Claude 3.7 Sonnet ships a 200k-token context window, while GPT-4o Search Preview ships a 128k-token context window. On pricing, GPT-4o Search Preview 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.

GPT-4o Search Preview is safer overall; choose Claude 3.7 Sonnet when coding workflow support matters.

Decision scorecard

Local evidence first
SignalClaude 3.7 SonnetGPT-4o Search Preview
Best forreasoning-heavy apps, multimodal apps, and tool-calling agentsgeneral production evaluation
Decision fitCoding, RAG, and AgentsRAG, Long context, and Classification
Context window200k128k
Cheapest output$15/1M tokens$10/1M tokens
Provider routes6 tracked1 tracked
Shared benchmarks0 shared0 shared

Decision tradeoffs

Choose Claude 3.7 Sonnet when...
  • 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 Vision, Multimodal, and Reasoning in local model data.
  • Local decision data tags Claude 3.7 Sonnet for Coding, RAG, and Agents.
Choose GPT-4o Search Preview when...
  • GPT-4o Search Preview has the lower cheapest tracked output price at $10/1M tokens.
  • Local decision data tags GPT-4o Search Preview for RAG, Long context, and Classification.

Monthly cost at traffic

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

Lower estimate GPT-4o Search Preview

Claude 3.7 Sonnet

$6,150

Cheapest tracked route/tier: GCP Vertex AI

GPT-4o Search Preview

$4,500

Cheapest tracked route/tier: OpenRouter

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 Search Preview
  • Provider overlap exists on OpenRouter; start route-level A/B tests there.
  • GPT-4o Search Preview is $5/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
  • Check replacement coverage for Vision, Multimodal, and Reasoning before moving production traffic.
GPT-4o Search Preview -> 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 Vision, Multimodal, and Reasoning in local capability data.

Specs

Specification
Released2024-03-042025-02-26
Context window200k128k
Parameters
ArchitectureDecoder OnlyDecoder Only
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 Search Preview
Input price$3/1M tokens$2.50/1M tokens
Output price$15/1M tokens$10/1M tokens
Providers

Capabilities

CapabilityClaude 3.7 SonnetGPT-4o Search Preview
VisionYesNo
MultimodalYesNo
ReasoningYesNo
JSON / Tool useYesNo
Structured outputsYesYes
Code executionYesNo
IDE integrationNoNo
Computer useNoNo
Parallel agentsNoNo

Benchmarks

No shared benchmark scores are currently available for this pair.

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