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DeepSeek-V3 0324 vs o3

o3 leads the LLM Stats Score 31.1 to 13.4. DeepSeek-V3 0324 is 8.6x cheaper per token.

DeepSeek · OpenAI · Updated for 2026

Which is better?

o3 leads the overall LLM Stats Score 31.1 to 13.4, ranking #113 overall.

In the 2 individual benchmarks reported for both models, o3 wins 2; this is a narrower head-to-head signal than the composite indexes.

On price, DeepSeek-V3 0324 is roughly 8.6x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

o3 also accepts a larger context window (200,000 input tokens), making it the stronger choice for long documents and large codebases.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose DeepSeek-V3 0324

  • cost matters — it's about 8.6x cheaper per token
  • you need open weights you can self-host or fine-tune

Choose o3

  • overall performance matters — it scores 31.1 and ranks #113 on LLM Stats
  • your work emphasizes reasoning — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 2 of 2 exact shared results
  • you process long inputs — it offers a 200,000 token context window
  • you want the most recent training data — it shipped Apr 2025

At a glance

The differences that matter most.

Core performance indexes
13.4
#245
31.1
#113
13.6
#235
30.8
#114
4.0
#213
14.9
#130
Cost, coverage & limits
Benchmark wins
0 of 2
2 of 2
Input price
$0.24 / M
$2.00 / M
Output price
$0.90 / M
$8.00 / M
Context window
163,840
200,000

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
DeepSeek-V3 0324
o3
15.8#212
25.5#108
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

5 reported for DeepSeek-V3 0324 · 22 for o3

2 shared

DeepSeek-V3 0324 outperforms in 0 benchmarks, while o3 is better at 2 benchmarks (AIME 2024, GPQA).

o3 significantly outperforms across most benchmarks.

Mon Sep 21 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

DeepSeek-V3 0324 costs less

For input processing, DeepSeek-V3 0324 ($0.24/1M tokens) is 8.3x cheaper than o3 ($2.00/1M tokens).

For output processing, DeepSeek-V3 0324 ($0.90/1M tokens) is 8.9x cheaper than o3 ($8.00/1M tokens).

In conclusion, o3 is more expensive than DeepSeek-V3 0324.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Mon Sep 21 2026 • llm-stats.com
DeepSeek
DeepSeek-V3 0324
Input tokens$0.24
Output tokens$0.90
Best providerDeepinfra
OpenAI
o3
Input tokens$2.00
Output tokens$8.00
Best providerOpenAI
Notice missing or incorrect data?Start an Issue

Context Window

Maximum input and output token capacity

o3 accepts 200,000 input tokens compared to DeepSeek-V3 0324's 163,840 tokens. DeepSeek-V3 0324 can generate longer responses up to 163,840 tokens, while o3 is limited to 100,000 tokens.

DeepSeek
DeepSeek-V3 0324
Input163,840 tokens
Output163,840 tokens
OpenAI
o3
Input200,000 tokens
Output100,000 tokens
Mon Sep 21 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

o3 supports multimodal inputs, whereas DeepSeek-V3 0324 does not.

o3 can handle both text and other forms of data like images, making it suitable for multimodal applications.

DeepSeek-V3 0324

Text
Images
Audio
Video

o3

Text
Images
Audio
Video

License

Usage and distribution terms

DeepSeek-V3 0324 is licensed under MIT + Model License (Commercial use allowed), while o3 uses a proprietary license.

License differences may affect how you can use these models in commercial or open-source projects.

DeepSeek-V3 0324

MIT + Model License (Commercial use allowed)

Open weights

o3

Proprietary

Closed source

Release Timeline

When each model was launched

DeepSeek-V3 0324 was released on 2025-03-25, while o3 was released on 2025-04-16.

o3 is 1 month newer than DeepSeek-V3 0324.

DeepSeek-V3 0324

Mar 25, 2025

1.5 years ago

o3

Apr 16, 2025

1.4 years ago

3w newer

Knowledge Cutoff

When training data ends

o3 has a documented knowledge cutoff of 2024-05-31, while DeepSeek-V3 0324's cutoff date is not specified.

We can confirm o3's training data extends to 2024-05-31, but cannot make a direct comparison without DeepSeek-V3 0324's cutoff date.

DeepSeek-V3 0324

o3

May 2024

Provider Availability

DeepSeek-V3 0324 is available from DeepInfra, Novita. o3 is available from OpenAI.

DeepSeek-V3 0324

deepinfra logo
Deepinfra
Input Price:Input: $0.24/1MOutput Price:Output: $0.90/1M
novita logo
Novita
Input Price:Input: $0.28/1MOutput Price:Output: $1.14/1M

o3

openai logo
OpenAI
Input Price:Input: $2.00/1MOutput Price:Output: $8.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion

Judge for yourself.

Run your own prompts against DeepSeek-V3 0324 and o3 side-by-side, then vote on the output you prefer.

DeepSeek-V3 0324
✓ Preferred
o3
Open in Playground

FAQ

Common questions about DeepSeek-V3 0324 vs o3.

Which is better, DeepSeek-V3 0324 or o3?

o3 leads the LLM Stats Score 31.1 to 13.4. DeepSeek-V3 0324 is made by DeepSeek and o3 is made by OpenAI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does DeepSeek-V3 0324 compare to o3 in benchmarks?

DeepSeek-V3 0324 scores MATH-500: 94.0%, MMLU-Pro: 81.2%, GPQA: 68.4%, AIME 2024: 59.4%, LiveCodeBench: 49.2%. o3 scores COLLIE: 98.4%, AIME 2024: 91.6%, ARC-AGI: 88.0%, MathVista: 86.8%, AIME 2025: 86.4%.

Is DeepSeek-V3 0324 cheaper than o3?

DeepSeek-V3 0324 is 8.3x cheaper for input tokens. DeepSeek-V3 0324 costs $0.24/M input and $0.90/M output via deepinfra. o3 costs $2.00/M input and $8.00/M output via openai.

What are the context window sizes for DeepSeek-V3 0324 and o3?

DeepSeek-V3 0324 supports 164K tokens and o3 supports 200K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between DeepSeek-V3 0324 and o3?

Key differences include LLM Stats Score (13.4 vs 31.1), context window (164K vs 200K), input pricing ($0.24 vs $2.00/M), multimodal support (no vs yes), licensing (MIT + Model License (Commercial use allowed) vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes DeepSeek-V3 0324 and o3?

DeepSeek-V3 0324 is developed by DeepSeek and o3 is developed by OpenAI.