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Home/GPT-5.2 vs DeepSeek R1
Winner: GPT-5.2OpenAI vs DeepSeek

GPT-5.2 vs DeepSeek R1

GPT-5.2 wins on coding (85 vs 84) and writing quality and context window (200K vs 128K). DeepSeek R1 wins on price ($0.55 vs $1.75/1M input). For most workflows, GPT-5.2 is the stronger default — capable but outclassed — gpt-5.4 is now cheaper and better.

Last verified Sep 3, 2026/Model data modified Sep 3, 2026
Rankings refresh dailyScored on 6 criteriaNo paid rankings
OpenAIPremium
Input cost
$1.75/1M
Context
200k tokens
Speed
Balanced

Clear recommendation block

The safest GPT-5.2 vs DeepSeek R1 default, the cheaper option worth trying first, and the specialist pick — before you read the detail below.

Best overall model

GPT-5.2

View
Why this recommendation

GPT-5.2 is the strongest answer here for GPT-5.2 vs DeepSeek R1 — pick it when quality of output matters more than the $1.75/1M/1M input you pay for it.

OpenAIPremium
Best for
Serious coding and complex product work
Price
$1.75/1M
Context
200k tokens
Best value model

DeepSeek R1

View
Why this recommendation

DeepSeek R1 handles the same job for about 83% less per token. Start here and only move up if the output is not good enough.

DeepSeekBudget
Best for
Math, science, complex reasoning, and multi-step problem solving at budget cost
Price
$0.55/1M
Context
128k tokens
Best for speed

GPT-5.2

View
Why this recommendation

GPT-5.2 is the fastest of these for GPT-5.2 vs DeepSeek R1 — worth it when latency is what the reader notices, not the last few points of reasoning depth.

OpenAIPremium
Best for
Serious coding and complex product work
Price
$1.75/1M
Context
200k tokens

Why this page recommends it

GPT-5.2 leads on coding with a score of 85 vs 84 for DeepSeek R1.

GPT-5.2 has the larger context window: 200K vs 128K for DeepSeek R1.

DeepSeek R1 is cheaper at $0.55/1M input tokens vs $1.75/1M for GPT-5.2.

Decision notes

Choose GPT-5.2 for serious coding and complex product work. Its coding and research scores are what carry the recommendation here.

Choose DeepSeek R1 when your work is mostly math and science — that is the workload it was tuned for.

DeepSeek R1 is the more cost-efficient option at $0.55/1M input — GPT-5.2 costs 3x more per input token, so the gap is worth taking seriously wherever token volume rather than peak quality drives the bill.

Interactive decision lab

Test the recommendation against your priority

Switch the scoring lens to see whether the GPT-5.2 vs DeepSeek R1 answer changes when cost, speed, or long-document depth leads the decision.

#1GPT-5.275 pts
#2DeepSeek R170 pts
Quality first

GPT-5.2

OpenAI / Premium / Sep 3, 2026

75

Capable but outclassed — GPT-5.4 is now cheaper and better.

Ranks models by the broadest mix of coding, writing, research, and long-context usefulness.

Cost
$1.75/1M
$14.00/1M out
Speed
Balanced
3/5 score
Context
200k tokens
input window
View model
Data-backed recommendation
Avoid this pick if

You're starting a new project — GPT-5.4 is cheaper and more capable.

Recommended comparisons

Where the GPT-5.2 vs DeepSeek R1 recommendation shifts once you weigh price or latency differently.

OpenAIPremiumWinner: GPT-5.2

GPT-5.2

Capable but outclassed — GPT-5.4 is now cheaper and better.

Best use case
Serious coding and complex product work
Input
$1.75/1M
Pricing
Premium
Speed
Balanced
Context
200k tokens
Former top pickCodingReasoning
DeepSeekBudgetOption 2

DeepSeek R1

Open-source o1-class reasoning at a fraction of the cost.

Best use case
Math, science, complex reasoning, and multi-step problem solving at budget cost
Input
$0.55/1M
Pricing
Budget
Speed
Deliberate
Context
128k tokens
ReasoningOpen sourceBudget

Side-by-side specs

List prices and published scores — the numbers this page's pick is built from.

ModelInputOutputEst. monthContextSpeedCodingWritingResearch
GPT-5.2OpenAI$1.75/1M$14.00/1M$46200k tokensBalanced858284
DeepSeek R1DeepSeek$0.55/1M$2.19/1M$9.88128k tokensDeliberate846089

Scores out of 100 — how we evaluate models. “Est. month” is 10M in / 2M out at list price: a ceiling, no discounts.

The case for each model

Why each one is on the shortlist for GPT-5.2 vs DeepSeek R1, what it is genuinely good at, and where we would steer you away from it.

GPT-5.2

Winner: GPT-5.2OpenAI

Our pick for GPT-5.2 vs DeepSeek R1. It scores 85/100 on the coding axis we weight this page by, and nothing else in this shortlist matches it on output quality.

Reliable OpenAI flagship for serious coding and product work — a strong default before GPT-5.4 was released.

Input
$1.75/1M
Output
$14.00/1M
Context
200k tokens
Speed
Balanced

What people actually use it for

  • Production-grade code reviews for complex multi-service systems
  • Structured technical documentation for engineering teams
  • Research synthesis with careful citations and structured output

Where it wins

  • Reliable at debugging and multi-file code edits
  • Strong structured reasoning for product and technical workflows
  • Solid default for teams that want one premium OpenAI model

Where it falls down

  • Superseded by GPT-5.4 for most use cases
  • Claude Sonnet 4.6 leads on both coding and writing quality

Skip it if

You're starting a new project — GPT-5.4 is cheaper and more capable.

Our verdict

Still capable but GPT-5.4 at $2.50/1M input is now cheaper and better. Hard to justify GPT-5.2 at $12/1M for new projects.

Full pricing, benchmark table and release notes on the GPT-5.2 page.

DeepSeek R1

DeepSeek

The cost-conscious pick for GPT-5.2 vs DeepSeek R1, about 83% less per token than GPT-5.2 than the top choice while holding 84/100 on coding.

Open-source reasoning model that matches o1-class performance on math, science, and complex coding at a fraction of the cost — the best open alternative to proprietary reasoning models.

Input
$0.55/1M
Output
$2.19/1M
Context
128k tokens
Speed
Deliberate

What people actually use it for

  • Complex algorithm design and mathematical problem-solving where chain-of-thought reasoning matters
  • Scientific research synthesis requiring structured multi-step analysis
  • Hard coding challenges and competitive programming at low cost compared to o1

Where it wins

  • o1-class reasoning performance at under $0.60/1M input tokens
  • Open-source weights — can be self-hosted for sensitive workloads
  • Explicit chain-of-thought reasoning makes outputs auditable

Where it falls down

  • Slow — deliberate reasoning takes significantly longer than standard models
  • Overkill for routine tasks where a faster model gets the same result
  • Same data sovereignty concerns as DeepSeek V3 for regulated industries

Skip it if

Speed matters — R1's deliberate reasoning makes it wrong for interactive or high-throughput use cases.

Our verdict

The open-source reasoning model benchmark. If you need o1-class thinking at open-source pricing, nothing else competes.

Full pricing, benchmark table and release notes on the DeepSeek R1 page.

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Quick links

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FAQ

Is GPT-5.2 better than DeepSeek R1?

GPT-5.2 wins on more of the categories we score — coding, research, reasoning — so it is the better default of the two. DeepSeek R1 is the better pick when your work is mostly math and science. Neither is universally "better": GPT-5.2 is aimed at serious coding and complex product work, DeepSeek R1 at math and science.

Which is cheaper — GPT-5.2 or DeepSeek R1?

DeepSeek R1 is cheaper at $0.55/1M input and $2.19/1M output. GPT-5.2 costs $1.75/1M input and $14/1M output.

Which has a larger context window — GPT-5.2 or DeepSeek R1?

GPT-5.2 has the larger context window at 200K tokens vs DeepSeek R1's 128K. For large document analysis, GPT-5.2 is the stronger pick.

Is GPT-5.2 or DeepSeek R1 better for coding?

GPT-5.2 is better for coding with a score of 85 vs DeepSeek R1's 84 (out of 100). GPT-6 Astra is the overall coding leader in this directory at 100/100.

Which is faster — GPT-5.2 or DeepSeek R1?

GPT-5.2 is faster with a balanced speed rating (score: 3) vs DeepSeek R1's deliberate rating (score: 1). Speed matters most for interactive and high-throughput work; for batch jobs the DeepSeek R1 latency penalty is usually invisible.

What are the downsides of GPT-5.2?

Superseded by GPT-5.4 for most use cases. Claude Sonnet 4.6 leads on both coding and writing quality. Avoid it if you're starting a new project — GPT-5.4 is cheaper and more capable. That is the main case for looking at DeepSeek R1 instead.

What are the downsides of DeepSeek R1?

Slow — deliberate reasoning takes significantly longer than standard models. Overkill for routine tasks where a faster model gets the same result. Same data sovereignty concerns as DeepSeek V3 for regulated industries. Avoid it if speed matters — R1's deliberate reasoning makes it wrong for interactive or high-throughput use cases. Against GPT-5.2 specifically, the gap shows up most on coding (85 vs 84).

What does a month of real work cost on GPT-5.2 vs DeepSeek R1?

Take a moderate workload of 10M input and 2M output tokens a month. GPT-5.2 runs $45.50 (at $1.75/1M in and $14/1M out); DeepSeek R1 runs $9.88 (at $0.55/1M in and $2.19/1M out). That is a $35.62/month difference — DeepSeek R1 is the cheaper of the two at this volume, and the gap scales linearly as you send more. Output tokens dominate the bill on both, so prompt length matters far less than response length.

Can I use GPT-5.2 and DeepSeek R1 together?

Yes, and for most teams that beats picking one. A common split is GPT-5.2 for serious coding and complex product work, with DeepSeek R1 handling math and science. Routing high-volume, low-stakes calls to DeepSeek R1 at $0.55/1M and reserving GPT-5.2 for the hard cases is usually the cheapest arrangement that does not cost you quality.