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DeepSeek V4 Pro 0813 vs Grok 4.3

DeepSeek V4 Pro 0813 leads Grok 4.3 on coding, 56.1 to 37.4 on the Vibe Coding Index, and DeepSeek V4 Pro 0813 costs 1.3x less per output token ($1.98 vs $2.50 per million). Updated October 22, 2026; 64 benchmarks have a result for both.

Replace DeepSeek V4 Pro 0813 Replace Grok 4.3
DeepSeek V4 Pro 0813DeepSeek
Coding
56.1
Overall
60.8
Output $/M
$1.98
61
Grok 4.3xAI
Coding
37.4
Overall
53.1
Output $/M
$2.50
2
vs boards won of 64 shared, 1 tied

DeepSeek V4 Pro 0813 or Grok 4.3: which to pick

Pick DeepSeek V4 Pro 0813 for coding: it scores 56.1 on the Vibe Coding Index against 37.4 for Grok 4.3.

Pick Grok 4.3 for work measured by LegalBench (Vals AI) or CorpFin (Vals AI), where it leads.

Model ADeepSeek V4 Pro 0813DeepSeek56.1/1005 independent benchmarks$0.10 per solved taskModel BGrok 4.3xAI37.4/1003 independent benchmarks$0.31 per solved task
Shared results
64
DeepSeek V4 Pro 0813 only
14
Grok 4.3 only
41
Like-for-like categories
7 of 9

Only benchmarks that tested both models count toward a pick; a result only one model has is shown but not compared.

Which one for your work

Each card is decided by one number both models carry. Where only one has it, the card says so and makes no call.

At a glance

Coding index
DeepSeek V4 Pro 0813 56.1 from 5 benchmarks, Grok 4.3 37.4 from 3 benchmarks.
Widest category
Agentic work, 23.8 points apart on average over 5 shared benchmarks.
Widest single gap
Vibe Code Bench (Vals AI): DeepSeek V4 Pro 0813 82.3% against Grok 4.3 19.4%, 62.9 points apart on a 0 to 100 scale.
Output price
DeepSeek V4 Pro 0813 $1.98 against Grok 4.3 $2.50 per million output tokens, 1.3x apart.
Context window
DeepSeek V4 Pro 0813 takes 1.05M tokens, Grok 4.3 1M.

Benchmark by benchmark

First the score: boards each model leads, per category, where both have a result. Then every board, a category to a fold; bars are each result on a 0 to 100 scale, so compare the two in a row, not one row with another.

Boards won, where both have a result
CategoryDeepSeek V4 Pro 0813BarsGrok 4.3Ties
Coding1501 tie
Intelligence10
Agentic work50
Reasoning80
Math60
Knowledge82
General180
All shared boards6121 tie
CodingLike-for-likeSix of these boards feed the Vibe Coding Index150
Coding benchmarks for DeepSeek V4 Pro 0813 and Grok 4.3
BenchmarkDeepSeek V4 Pro 0813Grok 4.3Leader
LMArena WebDev15821358DeepSeek V4 Pro 0813
AA Coding Index68.842.2DeepSeek V4 Pro 0813
LiveCodeBench (Vals AI)87.5%84.5%DeepSeek V4 Pro 0813
SWE-bench Verified (Vals AI)96.4%71.4%DeepSeek V4 Pro 0813
Terminal-Bench 4 (Vals AI)14.1%Not measuredOnly DeepSeek V4 Pro 0813 measured
Vibe Code Bench (Vals AI)82.3%19.4%DeepSeek V4 Pro 0813
Code migration (Vals AI)41.5%6.8%DeepSeek V4 Pro 0813
ProgramBench (Vals AI)0.0%0.0%Tie
IOI (Vals AI)51.6%Not measuredOnly DeepSeek V4 Pro 0813 measured
Terminal-Bench 2.1 (Vals AI)54.7%42.0%DeepSeek V4 Pro 0813
Vibe Code Bench 1-100 (Vals AI)17.5%Not measuredOnly DeepSeek V4 Pro 0813 measured
SkillsBench (Vals AI)53.8%40.6%DeepSeek V4 Pro 0813
CyberBench (Vals AI)72.9%Not measuredOnly DeepSeek V4 Pro 0813 measured
SciCode51.0%48.3%DeepSeek V4 Pro 0813
Terminal-Bench Hard (Artificial Analysis run)Not measured37.9%Only Grok 4.3 measured
FrontierCode28.5%Not measuredOnly DeepSeek V4 Pro 0813 measured
WeirdML66.2%49.9%DeepSeek V4 Pro 0813
ALE-Bench1403.2944.2DeepSeek V4 Pro 0813
LMArena Text: coding14691415DeepSeek V4 Pro 0813
LMArena Text: software and IT14621416DeepSeek V4 Pro 0813
LMArena WebDev: React15881353DeepSeek V4 Pro 0813
LMArena WebDev: HTML15661367DeepSeek V4 Pro 0813
LMArena WebDev: from an imageNot measured1375Only Grok 4.3 measured
Neither model has a result on the other 16 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index10
Intelligence benchmarks for DeepSeek V4 Pro 0813 and Grok 4.3
BenchmarkDeepSeek V4 Pro 0813Grok 4.3Leader
AA Intelligence Index36.024.9DeepSeek V4 Pro 0813
Epoch Capabilities Index155.6Not measuredOnly DeepSeek V4 Pro 0813 measured
Agentic workLike-for-likePublic boards, shown as published, kept out of the index50
Agentic work benchmarks for DeepSeek V4 Pro 0813 and Grok 4.3
BenchmarkDeepSeek V4 Pro 0813Grok 4.3Leader
AA Agentic Index41.315.5DeepSeek V4 Pro 0813
Design Arena: agents building web appsNot measured1126Only Grok 4.3 measured
Design Arena: agents building full-stack appsNot measured1006Only Grok 4.3 measured
Design Arena: agents building mobile appsNot measured1058Only Grok 4.3 measured
Design Arena: agents building Android appsNot measured962Only Grok 4.3 measured
Design Arena: agents building Godot gamesNot measured914Only Grok 4.3 measured
Design Arena: agents building gamesNot measured1007Only Grok 4.3 measured
Design Arena: HTML slidesNot measured959Only Grok 4.3 measured
Design Arena: PowerPoint slidesNot measured988Only Grok 4.3 measured
Design Arena: spreadsheetsNot measured879Only Grok 4.3 measured
SREBench (Vals AI)1.9%Not measuredOnly DeepSeek V4 Pro 0813 measured
Finance Agent (Vals AI)50.4%37.7%DeepSeek V4 Pro 0813
Tax Agent Bench (Vals AI)26.8%6.2%DeepSeek V4 Pro 0813
Legal Research Bench (Vals AI)40.9%15.4%DeepSeek V4 Pro 0813
Harvey's Legal Agent Benchmark (Vals AI)10.8%Not measuredOnly DeepSeek V4 Pro 0813 measured
Excel Modeling Benchmark (Vals AI)52.8%18.4%DeepSeek V4 Pro 0813
Terminal-Bench-Science (Vals AI)4.3%Not measuredOnly DeepSeek V4 Pro 0813 measured
τ²-Bench TelecomNot measured97.7%Only Grok 4.3 measured
APEX-Agents47.3%Not measuredOnly DeepSeek V4 Pro 0813 measured
Vending-Bench 2Not measured$35Only Grok 4.3 measured
LMArena SearchNot measured1166Only Grok 4.3 measured
Neither model has a result on the other 20 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index80
Reasoning benchmarks for DeepSeek V4 Pro 0813 and Grok 4.3
BenchmarkDeepSeek V4 Pro 0813Grok 4.3Leader
GPQA Diamond92.4%91.4%DeepSeek V4 Pro 0813
MMMU Pro (Vals AI)Not measured83.1%Only Grok 4.3 measured
GPQA Diamond (Artificial Analysis run)92.8%90.1%DeepSeek V4 Pro 0813
Humanity's Last Exam (Artificial Analysis run)41.0%37.2%DeepSeek V4 Pro 0813
GPQA Diamond (Epoch AI run)91.7%88.8%DeepSeek V4 Pro 0813
ARC-AGI90.5%Not measuredOnly DeepSeek V4 Pro 0813 measured
ARC-AGI-261.3%Not measuredOnly DeepSeek V4 Pro 0813 measured
Chess puzzles46.0%18.0%DeepSeek V4 Pro 0813
Mystery game puzzles43.0%Not measuredOnly DeepSeek V4 Pro 0813 measured
LMArena Text: hard prompts14581396DeepSeek V4 Pro 0813
LMArena Text: expert14591384DeepSeek V4 Pro 0813
LMArena Text: hard prompts in English14631402DeepSeek V4 Pro 0813
LMArena Vision: diagramsNot measured1241Only Grok 4.3 measured
LMArena Vision: homeworkNot measured1241Only Grok 4.3 measured
Neither model has a result on the other 8 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index60
Math benchmarks for DeepSeek V4 Pro 0813 and Grok 4.3
BenchmarkDeepSeek V4 Pro 0813Grok 4.3Leader
OTIS Mock AIME98.6%93.3%DeepSeek V4 Pro 0813
FrontierMath, tiers 1 to 364.6%42.8%DeepSeek V4 Pro 0813
FrontierMath, tier 426.8%14.6%DeepSeek V4 Pro 0813
ProofBench50.0%11.0%DeepSeek V4 Pro 0813
LMArena Text: math14411387DeepSeek V4 Pro 0813
LMArena Text: mathematical work14431396DeepSeek V4 Pro 0813
Neither model has a result on the other 7 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index82
Knowledge benchmarks for DeepSeek V4 Pro 0813 and Grok 4.3
BenchmarkDeepSeek V4 Pro 0813Grok 4.3Leader
MMLU Pro87.0%85.8%DeepSeek V4 Pro 0813
LegalBench (Vals AI)82.4%84.5%Grok 4.3
CaseLaw (Vals AI)Not measured79.3%Only Grok 4.3 measured
CorpFin (Vals AI)65.4%68.5%Grok 4.3
TaxEval (Vals AI)73.1%70.8%DeepSeek V4 Pro 0813
MortgageTax (Vals AI)Not measured48.3%Only Grok 4.3 measured
MedCode (Vals AI)42.5%38.1%DeepSeek V4 Pro 0813
SimpleQA Verified52.9%33.2%DeepSeek V4 Pro 0813
LMArena Text: science14571399DeepSeek V4 Pro 0813
LMArena Text: medicine and healthcare14461384DeepSeek V4 Pro 0813
LMArena Text: legal and government14591386DeepSeek V4 Pro 0813
LMArena Text: business and finance14421381DeepSeek V4 Pro 0813
Neither model has a result on the other 6 boards here
Web designDirectional onlyPublic boards, shown as published, kept out of the index8 boards, none shared
Web design benchmarks for DeepSeek V4 Pro 0813 and Grok 4.3
BenchmarkDeepSeek V4 Pro 0813Grok 4.3Leader
Design Arena: websitesNot measured1196Only Grok 4.3 measured
Design Arena: UI componentsNot measured1190Only Grok 4.3 measured
Design Arena: game devNot measured1173Only Grok 4.3 measured
Design Arena: data vizNot measured1179Only Grok 4.3 measured
Design Arena: 3DNot measured1124Only Grok 4.3 measured
Design Arena: all code categoriesNot measured1186Only Grok 4.3 measured
Design Arena: SVGNot measured1080Only Grok 4.3 measured
Design Arena: ASCII artNot measured1125Only Grok 4.3 measured
Neither model has a result on the other 1 board here
GeneralLike-for-likePublic boards, shown as published, kept out of the index180
General benchmarks for DeepSeek V4 Pro 0813 and Grok 4.3
BenchmarkDeepSeek V4 Pro 0813Grok 4.3Leader
Vals Index53.0%Not measuredOnly DeepSeek V4 Pro 0813 measured
Public Benefits Bench (Vals AI)Not measured51.7%Only Grok 4.3 measured
SAGE (Vals AI)Not measured19.7%Only Grok 4.3 measured
MedScribe (Vals AI)80.2%74.4%DeepSeek V4 Pro 0813
Vals Multimodal IndexNot measured43.3%Only Grok 4.3 measured
IFBenchNot measured83.3%Only Grok 4.3 measured
Long context reasoning (AA-LCR)80.3%75.0%DeepSeek V4 Pro 0813
DTBench93.9%90.7%DeepSeek V4 Pro 0813
LMCA45.5%38.3%DeepSeek V4 Pro 0813
LMArena Text14461397DeepSeek V4 Pro 0813
LMArena Text: instruction following14481366DeepSeek V4 Pro 0813
LMArena Text: creative writing14391380DeepSeek V4 Pro 0813
LMArena VisionNot measured1229Only Grok 4.3 measured
LMArena Text: English14571404DeepSeek V4 Pro 0813
LMArena Text: non-English14311385DeepSeek V4 Pro 0813
LMArena Text: Chinese14811422DeepSeek V4 Pro 0813
LMArena Text: GermanNot measured1395Only Grok 4.3 measured
LMArena Text: JapaneseNot measured1379Only Grok 4.3 measured
LMArena Text: Korean14491354DeepSeek V4 Pro 0813
LMArena Text: French14461411DeepSeek V4 Pro 0813
LMArena Text: Spanish14351399DeepSeek V4 Pro 0813
LMArena Text: Russian14481399DeepSeek V4 Pro 0813
LMArena Text: PolishNot measured1398Only Grok 4.3 measured
LMArena Text: multi-turn14541406DeepSeek V4 Pro 0813
LMArena Text: longer queries14581393DeepSeek V4 Pro 0813
LMArena Text: writing and language14431385DeepSeek V4 Pro 0813
LMArena Text: entertainment and media14241370DeepSeek V4 Pro 0813
LMArena Vision: EnglishNot measured1235Only Grok 4.3 measured
LMArena Vision: ChineseNot measured1257Only Grok 4.3 measured
LMArena Vision: reading textNot measured1235Only Grok 4.3 measured
LMArena Vision: humorNot measured1222Only Grok 4.3 measured
LMArena Vision: recognizing thingsNot measured1217Only Grok 4.3 measured
LMArena Vision: creative writingNot measured1237Only Grok 4.3 measured
Neither model has a result on the other 13 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for DeepSeek V4 Pro 0813 and Grok 4.3
BenchmarkDeepSeek V4 Pro 0813Grok 4.3Leader
Neither model has a result on 5 boards here

What each workload costs

Three fixed token mixes at each model's listed price, so per-token rates become a bill.

Chat turn

1K input + 500 output tokens

DeepSeek V4 Pro 0813$0.0016Fits in one request
Grok 4.3$0.0025Fits in one request

DeepSeek V4 Pro 0813 costs less

Repository review

50K input + 3K output tokens

DeepSeek V4 Pro 0813$0.039Fits in one request
Grok 4.3$0.070Fits in one request

DeepSeek V4 Pro 0813 costs less

Agent loop

200K input + 10K output tokens

DeepSeek V4 Pro 0813$0.152Fits in one request
Grok 4.3$0.275Fits in one request

DeepSeek V4 Pro 0813 costs less

Listed OpenRouter rates, without cache or batch discounts. A workload that does not fit a model's context window would need splitting.

Specification differences

The leading value in a row is marked; a row with a missing value names no leader. Our two rows are marked in red.

Specifications of DeepSeek V4 Pro 0813 and Grok 4.3
SpecificationDeepSeek V4 Pro 0813SpaceXAI Grok 4.3
MakerDeepSeekxAI
WeightsOpen weightsNo public weights listed
ReleasedAugust 12, 2026April 30, 2026
Context window1.05M1M
Input $/Mtok$0.66$1.25
Output $/Mtok$1.98$2.50
Coding index56.137.4
Independent measurements behind it53
Cost per solved task$0.10$0.31
SourceOpenRouter listingOpenRouter listing

Questions

Is DeepSeek V4 Pro 0813 better than Grok 4.3 for coding?

Pick DeepSeek V4 Pro 0813 for coding: it scores 56.1 on the Vibe Coding Index against 37.4 for Grok 4.3. Pick Grok 4.3 for work measured by LegalBench (Vals AI) or CorpFin (Vals AI), where it leads.

Which is cheaper, DeepSeek V4 Pro 0813 or Grok 4.3?

DeepSeek V4 Pro 0813 costs $0.66 per million input tokens and $1.98 per million output tokens; Grok 4.3 costs $1.25 and $2.50. Per solved SWE-bench Verified task, DeepSeek V4 Pro 0813 costs $0.10 and Grok 4.3 $0.31.

Which has the bigger context window, DeepSeek V4 Pro 0813 or Grok 4.3?

DeepSeek V4 Pro 0813, with 1.05M tokens against 1M.

How many benchmarks is the DeepSeek V4 Pro 0813 vs Grok 4.3 comparison based on?

64 benchmarks have a result for both models as of October 22, 2026. DeepSeek V4 Pro 0813's coding index rests on 5 independent benchmarks and Grok 4.3's on 3. Where only one model has a result, the page says so instead of naming a winner.

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<iframe src="https://llmbenchmark.ai/embed/compare/deepseek-v4-pro-0813-vs-grok-4-3" title="DeepSeek V4 Pro 0813 vs Grok 4.3, LLMBenchmark.ai" width="100%" height="360" style="border:0;max-width:100%" loading="lazy"></iframe>
<p style="font:13px/1.4 sans-serif;margin:6px 0 0">Source: <a href="https://llmbenchmark.ai/compare/deepseek-v4-pro-0813-vs-grok-4-3">LLMBenchmark.ai, DeepSeek V4 Pro 0813 vs Grok 4.3</a></p>