DeepSeek V3 vs Llama 3.1 70B Instruct
Updated October 21, 2026. 4 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.
Decision reading
Neither model has a coding score yet, so the two cannot be ranked on coding.
DeepSeek V3 has the edge where the context window is larger, 164K against 131K tokens.
- Shared results
- 4
- DeepSeek V3 only
- 9
- Llama 3.1 70B Instruct only
- 43
- Like-for-like categories
- 3 of 9
Shared results can support a head-to-head reading. Results only one model has describe coverage, not superiority.
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.
Coding
Vibe Coding Index, six public coding benchmarks
No call
Neither has a coding score yet.
One side not measured
Intelligence
AA Intelligence Index
No call
Only Llama 3.1 70B Instruct has a AA Intelligence Index result, 6.6.
Directional only
Web design
Design Arena: websites
No call
Only DeepSeek V3 has a Design Arena: websites result, 1120.
Directional only
Long documents
Listed context window
DeepSeek V3
DeepSeek V3 takes 164K tokens against 131K.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
DeepSeek V3
DeepSeek V3 $0.0008, Llama 3.1 70B Instruct $0.0008 per turn.
List prices
At a glance
- Coding index
- DeepSeek V3 not benchmarked, Llama 3.1 70B Instruct not benchmarked.
- Widest category
- Math, 45.3 points apart on average over 1 shared benchmark.
- Widest single gap
- OTIS Mock AIME: DeepSeek V3 48.9% against Llama 3.1 70B Instruct 3.6%, 45.3 points apart on a 0 to 100 scale.
- Output price
- DeepSeek V3 $0.9594 against Llama 3.1 70B Instruct $0.56 per million output tokens, 1.7x apart.
- Context window
- DeepSeek V3 takes 164K tokens, Llama 3.1 70B Instruct 131K.
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.
| Category | DeepSeek V3 | Bars | Llama 3.1 70B Instruct | Ties |
|---|---|---|---|---|
| Reasoning | 1 | 0 | ||
| Math | 1 | 0 | ||
| General | 2 | 0 | ||
| All shared boards | 4 | 0 |
CodingDirectional onlySix of these boards feed the Vibe Coding Index7 boards, none shared
| Benchmark | DeepSeek V3 | Llama 3.1 70B Instruct | Leader |
|---|---|---|---|
| Aider polyglot | 70.2% | Not measured | Only DeepSeek V3 measured |
| SWE-bench Lite | 30.7% | Not measured | Only DeepSeek V3 measured |
| LiveCodeBench (Artificial Analysis run) | Not measured | 23.2% | Only Llama 3.1 70B Instruct measured |
| Terminal-Bench Hard (Artificial Analysis run) | Not measured | 3.0% | Only Llama 3.1 70B Instruct measured |
| WeirdML | Not measured | 9.0% | Only Llama 3.1 70B Instruct measured |
| LMArena Text: coding | Not measured | 1260 | Only Llama 3.1 70B Instruct measured |
| LMArena Text: software and IT | Not measured | 1260 | Only Llama 3.1 70B Instruct measured |
| Neither model has a result on the other 31 boards here | |||
IntelligenceDirectional onlyPublic boards, shown as published, kept out of the index2 boards, none shared
| Benchmark | DeepSeek V3 | Llama 3.1 70B Instruct | Leader |
|---|---|---|---|
| AA Intelligence Index | Not measured | 6.6 | Only Llama 3.1 70B Instruct measured |
| Epoch Capabilities Index | Not measured | 125.9 | Only Llama 3.1 70B Instruct measured |
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index3 boards, none shared
| Benchmark | DeepSeek V3 | Llama 3.1 70B Instruct | Leader |
|---|---|---|---|
| τ²-Bench Telecom | Not measured | 15.2% | Only Llama 3.1 70B Instruct measured |
| BALROG | Not measured | 27.9% | Only Llama 3.1 70B Instruct measured |
| TheAgentCompany | Not measured | 6.9% | Only Llama 3.1 70B Instruct measured |
| Neither model has a result on the other 36 boards here | |||
ReasoningLike-for-likePublic boards, shown as published, kept out of the index10
| Benchmark | DeepSeek V3 | Llama 3.1 70B Instruct | Leader |
|---|---|---|---|
| GPQA Diamond (Artificial Analysis run) | Not measured | 40.9% | Only Llama 3.1 70B Instruct measured |
| Humanity's Last Exam (Artificial Analysis run) | Not measured | 4.5% | Only Llama 3.1 70B Instruct measured |
| GPQA Diamond (Epoch AI run) | 71.2% | 44.2% | DeepSeek V3 |
| LMArena Text: hard prompts | Not measured | 1241 | Only Llama 3.1 70B Instruct measured |
| LMArena Text: expert | Not measured | 1209 | Only Llama 3.1 70B Instruct measured |
| LMArena Text: hard prompts in English | Not measured | 1261 | Only Llama 3.1 70B Instruct measured |
| Neither model has a result on the other 15 boards here | |||
MathLike-for-likePublic boards, shown as published, kept out of the index10
| Benchmark | DeepSeek V3 | Llama 3.1 70B Instruct | Leader |
|---|---|---|---|
| AA Math Index | Not measured | 4.0 | Only Llama 3.1 70B Instruct measured |
| AIME 2025 (Artificial Analysis run) | Not measured | 4.0% | Only Llama 3.1 70B Instruct measured |
| OTIS Mock AIME | 48.9% | 3.6% | DeepSeek V3 |
| MATH level 5 | Not measured | 36.7% | Only Llama 3.1 70B Instruct measured |
| LMArena Text: math | Not measured | 1252 | Only Llama 3.1 70B Instruct measured |
| LMArena Text: mathematical work | Not measured | 1253 | Only Llama 3.1 70B Instruct measured |
| Neither model has a result on the other 7 boards here | |||
KnowledgeDirectional onlyPublic boards, shown as published, kept out of the index6 boards, none shared
| Benchmark | DeepSeek V3 | Llama 3.1 70B Instruct | Leader |
|---|---|---|---|
| MMLU Pro (Artificial Analysis run) | Not measured | 67.6% | Only Llama 3.1 70B Instruct measured |
| MMLU | Not measured | 80.1% | Only Llama 3.1 70B Instruct measured |
| LMArena Text: science | Not measured | 1276 | Only Llama 3.1 70B Instruct measured |
| LMArena Text: medicine and healthcare | Not measured | 1257 | Only Llama 3.1 70B Instruct measured |
| LMArena Text: legal and government | Not measured | 1283 | Only Llama 3.1 70B Instruct measured |
| LMArena Text: business and finance | Not measured | 1235 | Only Llama 3.1 70B Instruct measured |
| Neither model has a result on the other 11 boards here | |||
Web designDirectional onlyPublic boards, shown as published, kept out of the index7 boards, none shared
| Benchmark | DeepSeek V3 | Llama 3.1 70B Instruct | Leader |
|---|---|---|---|
| Design Arena: websites | 1120 | Not measured | Only DeepSeek V3 measured |
| Design Arena: UI components | 1093 | Not measured | Only DeepSeek V3 measured |
| Design Arena: game dev | 1053 | Not measured | Only DeepSeek V3 measured |
| Design Arena: data viz | 1089 | Not measured | Only DeepSeek V3 measured |
| Design Arena: 3D | 1087 | Not measured | Only DeepSeek V3 measured |
| Design Arena: all code categories | 1108 | Not measured | Only DeepSeek V3 measured |
| Design Arena: SVG | 977 | Not measured | Only DeepSeek V3 measured |
| Neither model has a result on the other 2 boards here | |||
GeneralLike-for-likePublic boards, shown as published, kept out of the index20
| Benchmark | DeepSeek V3 | Llama 3.1 70B Instruct | Leader |
|---|---|---|---|
| IFBench | Not measured | 34.4% | Only Llama 3.1 70B Instruct measured |
| DTBench | 62.7% | 60.0% | DeepSeek V3 |
| LMCA | 15.2% | 14.8% | DeepSeek V3 |
| LMArena Text | Not measured | 1261 | Only Llama 3.1 70B Instruct measured |
| LMArena Text: instruction following | Not measured | 1231 | Only Llama 3.1 70B Instruct measured |
| LMArena Text: creative writing | Not measured | 1232 | Only Llama 3.1 70B Instruct measured |
| LMArena Text: English | Not measured | 1294 | Only Llama 3.1 70B Instruct measured |
| LMArena Text: non-English | Not measured | 1219 | Only Llama 3.1 70B Instruct measured |
| LMArena Text: Chinese | Not measured | 1215 | Only Llama 3.1 70B Instruct measured |
| LMArena Text: German | Not measured | 1222 | Only Llama 3.1 70B Instruct measured |
| LMArena Text: Japanese | Not measured | 1132 | Only Llama 3.1 70B Instruct measured |
| LMArena Text: Korean | Not measured | 1140 | Only Llama 3.1 70B Instruct measured |
| LMArena Text: French | Not measured | 1262 | Only Llama 3.1 70B Instruct measured |
| LMArena Text: Spanish | Not measured | 1253 | Only Llama 3.1 70B Instruct measured |
| LMArena Text: Russian | Not measured | 1234 | Only Llama 3.1 70B Instruct measured |
| LMArena Text: multi-turn | Not measured | 1256 | Only Llama 3.1 70B Instruct measured |
| LMArena Text: longer queries | Not measured | 1241 | Only Llama 3.1 70B Instruct measured |
| LMArena Text: writing and language | Not measured | 1236 | Only Llama 3.1 70B Instruct measured |
| LMArena Text: entertainment and media | Not measured | 1230 | Only Llama 3.1 70B Instruct measured |
| Neither model has a result on the other 27 boards here | |||
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | DeepSeek V3 | Llama 3.1 70B Instruct | Leader |
|---|---|---|---|
| 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 V3 costs less
Repository review
50K input + 3K output tokens
DeepSeek V3 costs less
Agent loop
200K input + 10K output tokens
DeepSeek V3 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.
| Specification | DeepSeek V3 | Meta Llama 3.1 70B Instruct |
|---|---|---|
| Maker | DeepSeek | Meta Llama |
| Weights | Open weights | Open weights |
| Released | December 26, 2024 | July 23, 2024 |
| Context window | 164K | 131K |
| Input $/Mtok | $0.2887 | $0.56 |
| Output $/Mtok | $0.9594 | $0.56 |
| Coding index | Not benchmarked | Not benchmarked |
| Independent measurements behind it | 0 | 0 |
| Cost per solved task | Not computable | Not computable |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is DeepSeek V3 better than Llama 3.1 70B Instruct for coding?
Neither model has a coding score yet, so the two cannot be ranked on coding. DeepSeek V3 has the edge where the context window is larger, 164K against 131K tokens.
Which is cheaper, DeepSeek V3 or Llama 3.1 70B Instruct?
DeepSeek V3 costs $0.2887 per million input tokens and $0.9594 per million output tokens; Llama 3.1 70B Instruct costs $0.56 and $0.56. Cost per solved task is known for neither of them.
Which has the bigger context window, DeepSeek V3 or Llama 3.1 70B Instruct?
DeepSeek V3, with 164K tokens against 131K.
How many benchmarks is the DeepSeek V3 vs Llama 3.1 70B Instruct comparison based on?
4 benchmarks have a result for both models as of October 21, 2026. DeepSeek V3's coding index rests on 0 independent benchmarks and Llama 3.1 70B Instruct's on 0. Where only one model has a result, the page says so instead of naming a winner.