Why is this comparison indexable?

It has 6 verifiable comparison points, and both models have pricing or benchmark data.

Are missing metrics invented?

No. Metrics without LMSpeed data are omitted from this report.

Back to models

Data points: 127

Key Takeaways

The readout for DeepSeek V3.2 and GPT-5.3 Codex, before the detailed comparison sheet.

Decision read

GPT-5.3 Codex

GPT-5.3 Codex currently has the stronger profile, with verified wins split 2 to 4.

Evidence depth

127 data points

Includes 31 benchmark rows, 0 audit samples, and 8 provider examples.

Selection signal

Start with GPT-5.3 Codex

The charts below split 39 high-signal samples across speed, scores, and audit health.

Change comparison

Switch either side of this report to compare another model with the same LMSpeed data pipeline.

Model AModel B

Select a different model to open a new comparison URL.

Model compare DeepSeek V3.2 vs GPT-5.3 Codex deepseek-v3-2-vs-gpt-5-3-codex	Model A DeepSeek V3.2	Model B GPT-5.3 Codex
Overall leader	Contender	Leading
Verified metric wins	2 wins	4 wins
Where it leads	Free providers, Recent tests	Cheapest input price, Average speed, First-token latency, Provider coverage
Model metadata	DeepSeek V3.2 exposes 131.1K tokens; notable signals: Text input, Text output, Tool calling, Structured outputs.	GPT-5.3 Codex exposes 400K tokens; notable signals: Text input, Image input, File input, Text output.
Developer	DeepSeek	OpenAI
Context window	131.1K tokens	400K tokens
Max output	64K tokens	128K tokens
Released	Dec 2025	Feb 2026
Modalities	Input Text Output Text	Input TextImageFile Output Text
Features	Text inputText outputTool callingStructured outputsJSON modeReasoning	Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning
Parameters	No data	No data
Tokenizer	DeepSeek	GPT
Knowledge cutoff	No data	No data
OpenRouter ID	deepseek/deepseek-v3.2	openai/gpt-5.3-codex
References	No data	No data

Benchmark score comparison

Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.

Category performance

Compare benchmark category scores on a 0-100 scale. Select a category to inspect the gap.

Model A coverage: 6 / 8
Model B coverage: 6 / 8
Shared: 6 shared categories

DeepSeek V3.2GPT-5.3 Codex

Avg. score

DeepSeek V3.2

54.3

Avg. score

GPT-5.3 Codex

67.1

Selected category

Agents

GPT-5.3 Codex leads by 27.8

Professional benchmark details

Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.

Group

Aggregateverified

BenchLM overall score

SourceDeepSeek V3.2

DeepSeek V3.2

56.0

Rank #38/82 · confidence 1 · eval date 2025-12-01

+29.0

GPT-5.3 Codex

winner

85.0

Rank #8/82 · confidence 1 · eval date 2026-02-05

Pricingverified

Output price

SourceDeepSeek V3.2 (Non-reasoning)

DeepSeek V3.2

winner

$0.420/M

Rank #12/95 · confidence 4

+$13.58/M

GPT-5.3 Codex

$14.00/M

Rank #75/95 · confidence 4

Pricingverified

Blended price

SourceDeepSeek V3.2 (Non-reasoning)

DeepSeek V3.2

winner

$0.315/M

Rank #19/95 · confidence 4

+$4.50/M

GPT-5.3 Codex

$4.81/M

Rank #75/95 · confidence 4

Pricingverified

Input price

SourceDeepSeek V3.2 (Non-reasoning)

DeepSeek V3.2

winner

$0.280/M

Rank #25/95 · confidence 4

+$1.47/M

GPT-5.3 Codex

$1.75/M

Rank #69/95 · confidence 4

Reasoningverified

AA-LCR

SourceDeepSeek V3.2

DeepSeek V3.2

39.0

Rank #49/57 · confidence 1 · eval date 2025-12-01

+35.0

GPT-5.3 Codex

winner

74.0

Rank #4/57 · confidence 1 · eval date 2026-02-05

Reasoningverified

BenchLM Reasoning score

SourceDeepSeek V3.2

DeepSeek V3.2

47.4

Rank #40/57 · confidence 1 · eval date 2025-12-01

+45.6

GPT-5.3 Codex

winner

93.0

Rank #4/57 · confidence 1 · eval date 2026-02-05

Reasoningverified

CritPt

SourceDeepSeek V3.2

DeepSeek V3.2

0.9

Rank #36/44 · confidence 1 · eval date 2025-12-01

+16.0

GPT-5.3 Codex

winner

16.9

Rank #6/44 · confidence 1 · eval date 2026-02-05

Reasoningverified

GPQA

SourceDeepSeek V3.2 (Non-reasoning)

DeepSeek V3.2

75.1%

Rank #57/103 · confidence 4

+16.4%

GPT-5.3 Codex

winner

91.5%

Rank #6/103 · confidence 4

Reasoningverified

HLE

SourceDeepSeek V3.2 (Non-reasoning)

DeepSeek V3.2

10.5%

Rank #54/103 · confidence 4

+29.4%

GPT-5.3 Codex

winner

39.9%

Rank #8/103 · confidence 4

Codingverified

SWE-Rebench

SourceDeepSeek V3.2

DeepSeek V3.2

winner

60.9

Rank #4/10 · confidence 1 · eval date 2025-12-01

+2.7

GPT-5.3 Codex

58.2

Rank #9/10 · confidence 1 · eval date 2026-02-05

Codingverified

AA Coding Index

SourceDeepSeek V3.2

DeepSeek V3.2

34.6

Rank #36/61 · confidence 1 · eval date 2025-12-01

+18.5

GPT-5.3 Codex

winner

53.1

Rank #5/61 · confidence 1 · eval date 2026-02-05

Codingverified

Terminal-Bench Hard

SourceDeepSeek V3.2

DeepSeek V3.2

32.6

Rank #32/59 · confidence 1 · eval date 2025-12-01

+20.4

GPT-5.3 Codex

winner

53.0

Rank #5/59 · confidence 1 · eval date 2026-02-05

Codingverified

AA-SciCode

SourceDeepSeek V3.2

DeepSeek V3.2

38.7

Rank #41/63 · confidence 1 · eval date 2025-12-01

+14.5

GPT-5.3 Codex

winner

53.2

Rank #7/63 · confidence 1 · eval date 2026-02-05

Codingverified

SciCode

SourceDeepSeek V3.2 (Non-reasoning)

DeepSeek V3.2

38.7%

Rank #53/101 · confidence 4

+14.5%

GPT-5.3 Codex

winner

53.2%

Rank #8/101 · confidence 4

Codingverified

BenchLM Coding score

SourceDeepSeek V3.2

DeepSeek V3.2

56.8

Rank #37/69 · confidence 1 · eval date 2025-12-01

+29.9

GPT-5.3 Codex

winner

86.7

Rank #10/69 · confidence 1 · eval date 2026-02-05

Mathverified

BenchLM Math score

SourceDeepSeek V3.2

DeepSeek V3.2

70.6

Rank #24/51 · confidence 1 · eval date 2025-12-01

+29.4

GPT-5.3 Codex

winner

100.0

Rank #1/51 · confidence 1 · eval date 2026-02-05

Knowledgeverified

AA-Omniscience Hallucination Rate

SourceDeepSeek V3.2

DeepSeek V3.2

winner

93.5

Rank #1/58 · confidence 1 · eval date 2025-12-01

+6.6

GPT-5.3 Codex

86.9

Rank #16/58 · confidence 1 · eval date 2026-02-05

Knowledgeverified

AA-Omniscience Accuracy

SourceDeepSeek V3.2

DeepSeek V3.2

24.2

Rank #41/58 · confidence 1 · eval date 2025-12-01

+27.6

GPT-5.3 Codex

winner

51.8

Rank #3/58 · confidence 1 · eval date 2026-02-05

Knowledgeverified

AA-GPQA Diamond

SourceDeepSeek V3.2

DeepSeek V3.2

75.1

Rank #43/63 · confidence 1 · eval date 2025-12-01

+16.4

GPT-5.3 Codex

winner

91.5

Rank #4/63 · confidence 1 · eval date 2026-02-05

Knowledgeverified

AA-HLE

SourceDeepSeek V3.2

DeepSeek V3.2

10.5

Rank #41/63 · confidence 1 · eval date 2025-12-01

+29.4

GPT-5.3 Codex

winner

39.9

Rank #5/63 · confidence 1 · eval date 2026-02-05

Knowledgeverified

Artificial Analysis Intelligence Index

SourceDeepSeek V3.2

DeepSeek V3.2

24.7

Rank #41/66 · confidence 1 · eval date 2025-12-01

+19.6

GPT-5.3 Codex

winner

44.3

Rank #6/66 · confidence 1 · eval date 2026-02-05

Knowledgeverified

BenchLM Knowledge score

SourceDeepSeek V3.2

DeepSeek V3.2

61.8

Rank #33/67 · confidence 1 · eval date 2025-12-01

+29.4

GPT-5.3 Codex

winner

91.2

Rank #7/67 · confidence 1 · eval date 2026-02-05

Multilingualverified

BenchLM Multilingual score

SourceDeepSeek V3.2

DeepSeek V3.2

67.0

Rank #21/50 · confidence 1 · eval date 2025-12-01

+29.9

GPT-5.3 Codex

winner

96.9

Rank #5/50 · confidence 1 · eval date 2026-02-05

Multimodalverified

BenchLM Multimodal Grounded score

SourceDeepSeek V3.2

DeepSeek V3.2

50.0

Rank #44/60 · confidence 1 · eval date 2025-12-01

+45.8

GPT-5.3 Codex

winner

95.8

Rank #3/60 · confidence 1 · eval date 2026-02-05

Multimodalverified

Design Arena Website

SourceDeepSeek V3.2

DeepSeek V3.2

winner

1218.0

Rank #27/46 · confidence 1 · eval date 2025-12-01

+12.0

GPT-5.3 Codex

1206.0

Rank #30/46 · confidence 1 · eval date 2026-02-05

Instruction followingverified

AA-IFBench

SourceDeepSeek V3.2

DeepSeek V3.2

49.0

Rank #35/60 · confidence 1 · eval date 2025-12-01

+26.4

GPT-5.3 Codex

winner

75.4

Rank #8/60 · confidence 1 · eval date 2026-02-05

Instruction followingverified

BenchLM Instruction Following score

SourceDeepSeek V3.2

DeepSeek V3.2

61.7

Rank #37/56 · confidence 1 · eval date 2025-12-01

+29.7

GPT-5.3 Codex

winner

91.4

Rank #11/56 · confidence 1 · eval date 2026-02-05

Agentsverified

Gert Labs

SourceDeepSeek V3.2

DeepSeek V3.2

29.6

Rank #35/36 · confidence 1 · eval date 2025-12-01

+27.9

GPT-5.3 Codex

winner

57.5

Rank #10/36 · confidence 1 · eval date 2026-02-05

Agentsverified

BenchLM Agentic score

SourceDeepSeek V3.2

DeepSeek V3.2

49.7

Rank #38/69 · confidence 1 · eval date 2025-12-01

+27.2

GPT-5.3 Codex

winner

76.9

Rank #12/69 · confidence 1 · eval date 2026-02-05

Agentsverified

AA Agentic Index

SourceDeepSeek V3.2

DeepSeek V3.2

39.8

Rank #36/57 · confidence 1 · eval date 2025-12-01

+20.7

GPT-5.3 Codex

winner

60.5

Rank #17/57 · confidence 1 · eval date 2026-02-05

Agentsverified

Tau2-Telecom

SourceDeepSeek V3.2

DeepSeek V3.2

78.9

Rank #34/58 · confidence 1 · eval date 2025-12-01

+7.1

GPT-5.3 Codex

winner

86.0

Rank #21/58 · confidence 1 · eval date 2026-02-05

API audit comparison

Latest completed audits from shared providers, with four safety and integrity score groups plus report links.

Provider	DeepSeek V3.2	GPT-5.3 Codex
No completed audits are available from shared providers yet.

Provider examples

Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.

Provider	DeepSeek V3.2	GPT-5.3 Codex
6345ywz API45 tests	DeepSeek V3.2 speed / latency 235 tok/s / 1787ms input / output No data	GPT-5.3 Codex speed / latency N/A / N/A input / output No data
星见雅 API40 tests	DeepSeek V3.2 speed / latency 21 tok/s / 15336ms input / output No data	GPT-5.3 Codex speed / latency 38 tok/s / 4553ms input / output No data
RinkoAI30 tests	DeepSeek V3.2 speed / latency 25 tok/s / 2484ms input / output No data	GPT-5.3 Codex speed / latency N/A / N/A input / output No data
UoCode25 tests	DeepSeek V3.2 speed / latency N/A / N/A input / output No data	GPT-5.3 Codex speed / latency 56 tok/s / 4621ms input / output No data
N1N15 tests	DeepSeek V3.2 speed / latency 37 tok/s / 1522ms input / output No data	GPT-5.3 Codex speed / latency N/A / N/A input / output No data
10dian-API	DeepSeek V3.2 deepseek-v3.2(次模型) speed / latency No data input / output $0.100/M / $0.100/M	GPT-5.3 Codex gpt-5.3-codex speed / latency No data input / output $0.010/M / $0.010/M
紫脑喵	DeepSeek V3.2 deepseek-v3.2-exp speed / latency No data input / output $0.010/M / $0.010/M	GPT-5.3 Codex gpt-5.3-codex speed / latency No data input / output $0.050/M / $0.050/M
Zero API	DeepSeek V3.2 deepseek-v3.2 speed / latency No data input / output $0.018/M / $0.028/M	GPT-5.3 Codex gpt-5.3-codex speed / latency No data input / output $0.120/M / $0.959/M

When to choose each model

This report only uses LMSpeed data for DeepSeek V3.2 and GPT-5.3 Codex: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.

Guidance	DeepSeek V3.2	GPT-5.3 Codex
When to choose each model	DeepSeek V3.2 DeepSeek V3.2 is stronger when you prioritize Free providers, Recent tests.	GPT-5.3 Codex GPT-5.3 Codex is stronger when you prioritize Cheapest input price, Average speed, First-token latency, Provider coverage.

FAQ

TL;DR: GPT-5.3 Codex leads across 127 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.

Why is this comparison indexable?: It has 6 verifiable comparison points, and both models have pricing or benchmark data.
Are missing metrics invented?: No. Metrics without LMSpeed data are omitted from this report.

Continue from DeepSeek V3.2 vs GPT-5.3 Codex into nearby model comparisons with enough verified LMSpeed data.

DeepSeek V3.2 vs GPT 5 4deepseek-v3-2-vs-gpt-5-4 Claude Opus 4 6 vs DeepSeek V3.2claude-opus-4-6-vs-deepseek-v3-2 DeepSeek V3.2 vs GPT 5deepseek-v3-2-vs-gpt-5 DeepSeek V3.2 vs GPT 5 2deepseek-v3-2-vs-gpt-5-2

Data as of Jul 3, 2026, 02:14 PMRankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.

Model compare

DeepSeek V3.2 vs GPT-5.3 Codex

deepseek-v3-2-vs-gpt-5-3-codex

Model A

DeepSeek V3.2

Model B

GPT-5.3 Codex

Overall leader

Contender

Leading

Verified metric wins

2 wins

4 wins

Where it leads

Free providers, Recent tests

Cheapest input price, Average speed, First-token latency, Provider coverage

Model metadata

DeepSeek V3.2 exposes 131.1K tokens; notable signals: Text input, Text output, Tool calling, Structured outputs.

GPT-5.3 Codex exposes 400K tokens; notable signals: Text input, Image input, File input, Text output.

Developer

DeepSeek

OpenAI

Context window

131.1K tokens

400K tokens

Max output

64K tokens

128K tokens

Released

Dec 2025

Feb 2026

Modalities

Input

Text

Output

Text

Input

TextImageFile

Output

Text

Features

Text inputText outputTool callingStructured outputsJSON modeReasoning

Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning

Parameters

No data

Tokenizer

DeepSeek

GPT

Knowledge cutoff

No data

OpenRouter ID

deepseek/deepseek-v3.2

openai/gpt-5.3-codex

References

No data

Provider	DeepSeek V3.2	GPT-5.3 Codex
No completed audits are available from shared providers yet.

Provider

DeepSeek V3.2

GPT-5.3 Codex

No completed audits are available from shared providers yet.

Provider

DeepSeek V3.2

GPT-5.3 Codex

6345ywz API45 tests

DeepSeek V3.2

speed / latency

235 tok/s / 1787ms

input / output

No data

GPT-5.3 Codex

speed / latency

N/A / N/A

input / output

No data

星见雅 API40 tests

DeepSeek V3.2

speed / latency

21 tok/s / 15336ms

input / output

No data

GPT-5.3 Codex

speed / latency

38 tok/s / 4553ms

input / output

No data

RinkoAI30 tests

DeepSeek V3.2

speed / latency

25 tok/s / 2484ms

input / output

No data

GPT-5.3 Codex

speed / latency

N/A / N/A

input / output

No data

UoCode25 tests

DeepSeek V3.2

speed / latency

N/A / N/A

input / output

No data

GPT-5.3 Codex

speed / latency

56 tok/s / 4621ms

input / output

No data

N1N15 tests

DeepSeek V3.2

speed / latency

37 tok/s / 1522ms

input / output

No data

GPT-5.3 Codex

speed / latency

N/A / N/A

input / output

No data

10dian-API

DeepSeek V3.2

deepseek-v3.2(次模型)

speed / latency

No data

input / output

$0.100/M / $0.100/M

GPT-5.3 Codex

gpt-5.3-codex

speed / latency

No data

input / output

$0.010/M / $0.010/M

紫脑喵

DeepSeek V3.2

deepseek-v3.2-exp

speed / latency

No data

input / output

$0.010/M / $0.010/M

GPT-5.3 Codex

gpt-5.3-codex

speed / latency

No data

input / output

$0.050/M / $0.050/M

Zero API

DeepSeek V3.2

deepseek-v3.2

speed / latency

No data

input / output

$0.018/M / $0.028/M

GPT-5.3 Codex

gpt-5.3-codex

speed / latency

No data

input / output

$0.120/M / $0.959/M

Guidance

DeepSeek V3.2

GPT-5.3 Codex

When to choose each model

DeepSeek V3.2

DeepSeek V3.2 is stronger when you prioritize Free providers, Recent tests.

GPT-5.3 Codex

GPT-5.3 Codex is stronger when you prioritize Cheapest input price, Average speed, First-token latency, Provider coverage.

Key Takeaways

Change comparison

DeepSeek V3.2 vs GPT-5.3 Codex

DeepSeek V3.2

GPT-5.3 Codex

Benchmark score comparison

Category performance

Professional benchmark details

BenchLM overall score

Output price

Blended price

Input price

AA-LCR

BenchLM Reasoning score

CritPt

GPQA

HLE

SWE-Rebench

AA Coding Index

Terminal-Bench Hard

AA-SciCode

SciCode

BenchLM Coding score

BenchLM Math score

AA-Omniscience Hallucination Rate

AA-Omniscience Accuracy

AA-GPQA Diamond

AA-HLE

Artificial Analysis Intelligence Index

BenchLM Knowledge score

BenchLM Multilingual score

BenchLM Multimodal Grounded score

Design Arena Website

AA-IFBench

BenchLM Instruction Following score

Gert Labs

BenchLM Agentic score

AA Agentic Index

Tau2-Telecom

API audit comparison

Provider examples

When to choose each model

FAQ

Related compare reports

Key Takeaways

Change comparison

DeepSeek V3.2 vs GPT-5.3 Codex

DeepSeek V3.2

GPT-5.3 Codex

Benchmark score comparison

Category performance

Professional benchmark details

BenchLM overall score

Output price

Blended price

Input price

AA-LCR

BenchLM Reasoning score

CritPt

GPQA

HLE

SWE-Rebench

AA Coding Index

Terminal-Bench Hard

AA-SciCode

SciCode

BenchLM Coding score

BenchLM Math score

AA-Omniscience Hallucination Rate

AA-Omniscience Accuracy

AA-GPQA Diamond

AA-HLE

Artificial Analysis Intelligence Index

BenchLM Knowledge score

BenchLM Multilingual score

BenchLM Multimodal Grounded score

Design Arena Website

AA-IFBench

BenchLM Instruction Following score

Gert Labs