DeepSeek V4 Pro vs GPT-4o (08-06)

Name: DeepSeek V4 Pro
Author: DeepSeek

DeepSeek V4 Pro (2026) and GPT-4o (08-06) (2024) are frontier reasoning models from DeepSeek and OpenAI. DeepSeek V4 Pro ships a 1M-token context window, while GPT-4o (08-06) ships a 128K-token context window. On MMLU PRO, DeepSeek V4 Pro leads by 12.8 pts. 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 fits 8x more tokens; pick it for long-context work and GPT-4o (08-06) for tighter calls.

Both models

DeepSeek V4 Pro GPT-4o (08-06)

Decision scorecard

Local evidence first

Signal	DeepSeek V4 Pro	GPT-4o (08-06)	How to read it
Best for	reasoning-heavy apps, tool-calling agents, and long-context analysis	multimodal apps and provider-routed production	Use-case synthesis from product type, capability flags, context, and provider data.
Decision fit	Coding, RAG, and Agents	Coding, RAG, and Agents	Primary workload tags from local decision data.
Context window	1M	128K	Higher is better when prompts, retrieval chunks, or transcripts are large.
Cheapest output	$0.73/1M tokens	$10/1M tokens	Cheapest tracked provider route; verify your exact region and tier.
Provider routes	6 tracked	3 tracked	Broader coverage can reduce vendor lock-in and fallback risk.
Shared benchmarks	MMLU PRO leader	2 shared	Visible benchmark lead is 12.8 points on MMLU PRO.

Decision tradeoffs

Choose DeepSeek V4 Pro when...

DeepSeek V4 Pro holds a shared-benchmark lead on MMLU PRO, ahead by 12.8 points.
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 $0.73/1M 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.

Choose GPT-4o (08-06) when...

GPT-4o (08-06) uniquely exposes Vision, Multimodal, and Code execution in local model data.
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 DeepSeek V4 Pro

Requests / monthInput tokens / requestOutput tokens / request

DeepSeek V4 Pro

$472

Cheapest tracked route/tier: OpenRouter

GPT-4o (08-06)

$4,500

Cheapest tracked route/tier: OpenAI API

Estimated monthly gap: $4,028. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.

Switch friction

DeepSeek V4 Pro -> GPT-4o (08-06)

Provider overlap exists on OpenRouter; start route-level A/B tests there.
GPT-4o (08-06) is $9.27/1M 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 (08-06) adds Vision, Multimodal, and Code execution in local capability data.

GPT-4o (08-06) -> DeepSeek V4 Pro

Provider overlap exists on OpenRouter; start route-level A/B tests there.
DeepSeek V4 Pro is $9.27/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
Check replacement coverage for Vision, Multimodal, and Code execution before moving production traffic.
DeepSeek V4 Pro adds Reasoning and JSON / Tool use in local capability data.

Specs

Specification	DeepSeek V4 Pro DeepSeek	GPT-4o (08-06) OpenAI
Released	2026-04-24	2024-08-06
Context window	1M	128K
Parameters	1.6T	1.76T (8x222B MoE)*
Architecture	Mixture of Experts	Mixture of Experts
License	MITOSI-approved	Proprietary
Openness	Open source	Proprietary
Weights	Available	Not released
Code	Unknown	Unknown
Commercial use	Permitted	Restricted
Knowledge cutoff	-	2023-10

Pricing and availability

Pricing attribute	DeepSeek V4 Pro	GPT-4o (08-06)
Input price	Off-peak $0.66/1M tokens All hours outside DeepSeek peak windows, including weekends and Chinese public holidays. Cache-read input: $0.022 per 1M tokens; cache-miss input: $0.66 per 1M; output: $1.98 per 1M. Peak $1.32/1M tokens 01:00-04:00 and 06:00-10:00 UTC, Monday-Friday, excluding Chinese public holidays. 2x off-peak. Cache-read input: $0.044 per 1M tokens; cache-miss input: $1.32 per 1M; output: $3.96 per 1M.	$2.50/1M tokens
Output price	Off-peak $1.98/1M tokens All hours outside DeepSeek peak windows, including weekends and Chinese public holidays. Cache-read input: $0.022 per 1M tokens; cache-miss input: $0.66 per 1M; output: $1.98 per 1M. Peak $3.96/1M tokens 01:00-04:00 and 06:00-10:00 UTC, Monday-Friday, excluding Chinese public holidays. 2x off-peak. Cache-read input: $0.044 per 1M tokens; cache-miss input: $1.32 per 1M; output: $3.96 per 1M.	$10/1M tokens
Providers	DeepSeek Platform Fireworks AI OpenRouter Vercel AI Gateway Novita AI Featherless	OpenAI API Salesforce Models API OpenRouter

Capabilities

Capability	DeepSeek V4 Pro	GPT-4o (08-06)
Vision	No	Yes
Multimodal	No	Yes
Reasoning	Yes	No
JSON / Tool use	Yes	No
Structured outputs	Yes	Yes
Code execution	No	Yes
IDE integration	No	No
Computer use	No	No
Parallel agents	No	No

Benchmarks

Benchmark	DeepSeek V4 Pro	GPT-4o (08-06)
MMLU PRO	87.5	74.7
LMArena Text Arena - Creative Writing	1446.0	1274.0

Deep dive

On shared benchmark coverage, MMLU PRO has DeepSeek V4 Pro at 87.5 and GPT-4o (08-06) at 74.7, with DeepSeek V4 Pro ahead by 12.8 points; LMArena Text Arena - Creative Writing has DeepSeek V4 Pro at 1446 and GPT-4o (08-06) at 1274, with DeepSeek V4 Pro ahead by 172 points. The largest visible gap is 172 points on LMArena Text Arena - Creative Writing, which matters most when that benchmark mirrors your workload. Treat isolated benchmark wins as directional, because provider routing, prompt style, and tool access can move real application results.

The capability footprint differs most on vision: GPT-4o (08-06), multimodal input: GPT-4o (08-06), reasoning mode: DeepSeek V4 Pro, JSON / Tool use: DeepSeek V4 Pro, JSON / Tool use: DeepSeek V4 Pro, and code execution: GPT-4o (08-06). 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 tiered pricing: Off-peak is $0.66/1M input and $1.98/1M output; Peak is $1.32/1M input and $3.96/1M output, while GPT-4o (08-06) lists $2.50/1M input and $10/1M output tokens on the cheapest listed provider. A 70/30 input-output blend puts DeepSeek V4 Pro lower by about $4.28 per million blended tokens. For tiered pricing, this cheapest-route view can understate interactive or fast-lane spend, so compare the tier you will actually use. Availability is 6 providers versus 3, so concentration risk also matters.

Choose DeepSeek V4 Pro when reasoning depth, larger context windows, and lower cheapest-tier input-token cost are central to the workload. Choose GPT-4o (08-06) when coding workflow support are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship.

FAQ

Which has a larger context window, DeepSeek V4 Pro or GPT-4o (08-06)?

DeepSeek V4 Pro supports 1M tokens, while GPT-4o (08-06) 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 (08-06)?

DeepSeek V4 Pro lists tiered pricing: Off-peak is $0.66/1M input and $1.98/1M output; Peak is $1.32/1M input and $3.96/1M output. GPT-4o (08-06) lists $2.50/1M input and $10/1M output tokens on the cheapest listed provider. Compare the tier you will actually use; cheap async pricing can overstate savings for interactive workflows. Provider discounts or batch pricing can still change the final bill.

Is DeepSeek V4 Pro or GPT-4o (08-06) open source?

DeepSeek V4 Pro is listed under MIT. GPT-4o (08-06) 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 vision, DeepSeek V4 Pro or GPT-4o (08-06)?

GPT-4o (08-06) has the clearer documented vision signal in this comparison. If vision is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ. Use this as a quick comparison signal, then confirm the provider-specific limits before committing to production.

Which is better for multimodal input, DeepSeek V4 Pro or GPT-4o (08-06)?

GPT-4o (08-06) has the clearer documented multimodal input signal in this comparison. If multimodal input 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 (08-06)?

DeepSeek V4 Pro is available on DeepSeek Platform, Fireworks AI, OpenRouter, Vercel AI Gateway, and Novita AI. GPT-4o (08-06) is available on OpenAI API, Salesforce Models API, and OpenRouter. Provider coverage can affect latency, region availability, compliance posture, and fallback options.

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Last reviewed: 2026-10-17. Data sourced from public model cards and provider documentation.