LLM Reference

DeepSeek V4 Pro vs GPT-4o (2024-11-20)

DeepSeek V4 Pro (2026) and GPT-4o (2024-11-20) (2024) are frontier reasoning models from DeepSeek and OpenAI. DeepSeek V4 Pro ships a 1m-token context window, while GPT-4o (2024-11-20) ships a 128k-token context window. On pricing, DeepSeek V4 Pro costs $0.43/1M input tokens versus $2.50/1M 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 V4 Pro is ~475% cheaper at $0.43/1M; pay for GPT-4o (2024-11-20) only for provider fit.

Decision scorecard

Local evidence first
SignalDeepSeek V4 ProGPT-4o (2024-11-20)
Best forreasoning-heavy apps, tool-calling agents, and long-context analysisprovider-routed production
Decision fitCoding, RAG, and AgentsCoding, RAG, and Long context
Context window1m128k
Cheapest output$0.87/1M tokens$10/1M tokens
Provider routes5 tracked2 tracked
Shared benchmarks0 shared0 shared

Decision tradeoffs

Choose DeepSeek V4 Pro when...
  • DeepSeek V4 Pro has the larger context window for long prompts, retrieval packs, or transcript analysis.
  • DeepSeek V4 Pro has the lower cheapest tracked output price at $0.87/1M tokens.
  • DeepSeek V4 Pro has broader tracked provider coverage for fallback and route flexibility.
  • DeepSeek V4 Pro uniquely exposes Reasoning and JSON / Tool use in local model data.
  • Local decision data tags DeepSeek V4 Pro for Coding, RAG, and Agents.
Choose GPT-4o (2024-11-20) when...
  • Local decision data tags GPT-4o (2024-11-20) for Coding, RAG, and Long context.

Monthly cost at traffic

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

Lower estimate DeepSeek V4 Pro

DeepSeek V4 Pro

$566

Cheapest tracked route/tier: DeepSeek Platform

GPT-4o (2024-11-20)

$4,500

Cheapest tracked route/tier: OpenRouter

Estimated monthly gap: $3,935. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.

Switch friction

DeepSeek V4 Pro -> GPT-4o (2024-11-20)
  • Provider overlap exists on OpenRouter; start route-level A/B tests there.
  • GPT-4o (2024-11-20) is $9.13/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
  • Check replacement coverage for Reasoning and JSON / Tool use before moving production traffic.
GPT-4o (2024-11-20) -> DeepSeek V4 Pro
  • Provider overlap exists on OpenRouter; start route-level A/B tests there.
  • DeepSeek V4 Pro is $9.13/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
  • DeepSeek V4 Pro adds Reasoning and JSON / Tool use in local capability data.

Specs

Specification
Released2026-04-242024-11-20
Context window1m128k
Parameters1.6T—
ArchitectureMixture of ExpertsDecoder Only
LicenseMITOSI-approvedProprietary
OpennessOpen sourceProprietary
WeightsAvailableNot released
CodeUnknownUnknown
Commercial useCommercial use: permittedCommercial use: conditional
Knowledge cutoff-2023-10

Pricing and availability

Pricing attributeDeepSeek V4 ProGPT-4o (2024-11-20)
Input price$0.43/1M tokens$2.50/1M tokens
Output price$0.87/1M tokens$10/1M tokens
Providers
DeepSeek PlatformFireworks AIOpenRouterVercel AI GatewayNovita AI
OpenRouterOpenAI API

Capabilities

CapabilityDeepSeek V4 ProGPT-4o (2024-11-20)
VisionNoNo
MultimodalNoNo
ReasoningYesNo
JSON / Tool useYesNo
Structured outputsYesYes
Code executionNoNo
IDE integrationNoNo
Computer useNoNo
Parallel agentsNoNo

Benchmarks

No shared benchmark scores are currently available for this pair.

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Last reviewed: 2026-06-29. Data sourced from public model cards and provider documentation.