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| Signal | DeepSeek V4 Pro | GPT-4o (2024-11-20) |
|---|---|---|
| Best for | reasoning-heavy apps, tool-calling agents, and long-context analysis | provider-routed production |
| Decision fit | Coding, RAG, and Agents | Coding, RAG, and Long context |
| Context window | 1m | 128k |
| Cheapest output | $0.87/1M tokens | $10/1M tokens |
| Provider routes | 5 tracked | 2 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- 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 procurement flexibility.
- DeepSeek V4 Pro uniquely exposes Reasoning, Function calling, and Tool use in local model data.
- Local decision data tags DeepSeek V4 Pro for Coding, RAG, and Agents.
- 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.
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
- 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, Function calling, and Tool use before moving production traffic.
- 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, Function calling, and Tool use in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-04-24 | 2024-11-20 |
| Context window | 1m | 128k |
| Parameters | 1.6T | — |
| Architecture | Mixture of Experts (MoE) with CSA+HCA hybrid attention | decoder only |
| License | MIT(OSI) | Proprietary |
| Openness | Open source | Proprietary |
| Commercial use | Commercial use allowed | Commercial use with conditions |
| Knowledge cutoff | - | 2023-10 |
Pricing and availability
| Pricing attribute | DeepSeek V4 Pro | GPT-4o (2024-11-20) |
|---|---|---|
| Input price | $0.43/1M tokens | $2.50/1M tokens |
| Output price | $0.87/1M tokens | $10/1M tokens |
| Providers |
Capabilities
| Capability | DeepSeek V4 Pro | GPT-4o (2024-11-20) |
|---|---|---|
| Vision | No | No |
| Multimodal | No | No |
| Reasoning | Yes | No |
| Function calling | Yes | No |
| Tool use | Yes | No |
| Structured outputs | Yes | Yes |
| Code execution | No | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on reasoning mode: DeepSeek V4 Pro, function calling: DeepSeek V4 Pro, and tool use: DeepSeek V4 Pro. Both models share structured outputs, so the practical split is not just feature count. Use those differences to decide whether the page is about raw model quality, agentic coding support, multimodal ingestion, or predictable structured API behavior.
For cost, DeepSeek V4 Pro lists $0.43/1M input and $0.87/1M output tokens on the cheapest tracked provider, while GPT-4o (2024-11-20) lists $2.50/1M input and $10/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts DeepSeek V4 Pro lower by about $4.18 per million blended tokens. Availability is 5 providers versus 2, so concentration risk also matters.
Choose DeepSeek V4 Pro when reasoning depth, larger context windows, and lower input-token cost are central to the workload. Choose GPT-4o (2024-11-20) when provider fit are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship. This keeps the decision grounded in measurable tradeoffs instead of brand-level assumptions. It also helps separate model capability from provider packaging, which can change cost and latency.
FAQ
Which has a larger context window, DeepSeek V4 Pro or GPT-4o (2024-11-20)?
DeepSeek V4 Pro supports 1m tokens, while GPT-4o (2024-11-20) supports 128k tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Which is cheaper, DeepSeek V4 Pro or GPT-4o (2024-11-20)?
DeepSeek V4 Pro is cheaper on tracked token pricing. DeepSeek V4 Pro costs $0.43/1M input and $0.87/1M output tokens. GPT-4o (2024-11-20) costs $2.50/1M input and $10/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is DeepSeek V4 Pro or GPT-4o (2024-11-20) open source?
DeepSeek V4 Pro is listed under MIT. GPT-4o (2024-11-20) is listed under Proprietary. License labels affect whether you can self-host, redistribute weights, or rely only on hosted APIs, so confirm the upstream license before deployment.
Which is better for reasoning mode, DeepSeek V4 Pro or GPT-4o (2024-11-20)?
DeepSeek V4 Pro has the clearer documented reasoning mode signal in this comparison. If reasoning mode is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Which is better for function calling, DeepSeek V4 Pro or GPT-4o (2024-11-20)?
DeepSeek V4 Pro has the clearer documented function calling signal in this comparison. If function calling is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Where can I run DeepSeek V4 Pro and GPT-4o (2024-11-20)?
DeepSeek V4 Pro is available on DeepSeek Platform, Fireworks AI, OpenRouter, Vercel AI Gateway, and Novita AI. GPT-4o (2024-11-20) is available on OpenRouter and OpenAI API. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
Continue comparing
Last reviewed: 2026-05-31. Data sourced from public model cards and provider documentation.