Llama 3.1 8B Instruct vs Mistral Small 3.1 24B
Llama 3.1 8B Instruct costs 6.9x less per output token than Mistral Small 3.1 24B ($0.08 vs $0.555 per million). Updated October 22, 2026; 27 benchmarks have a result for both.
Llama 3.1 8B Instruct or Mistral Small 3.1 24B: which to pick
Neither model has a coding score yet, so the two cannot be ranked on coding.
Pick Llama 3.1 8B Instruct for output tokens 6.9x cheaper ($0.08 vs $0.555 per million) and a larger context window (131K against 128K tokens).
- Shared results
- 27
- Llama 3.1 8B Instruct only
- 24
- Mistral Small 3.1 24B only
- 11
- Like-for-like categories
- 5 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.
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 8B Instruct has a AA Intelligence Index result, 6.9.
Directional only
Long documents
Listed context window
Llama 3.1 8B Instruct
Llama 3.1 8B Instruct takes 131K tokens against 128K.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
Llama 3.1 8B Instruct
Llama 3.1 8B Instruct $0.0001, Mistral Small 3.1 24B $0.0006 per turn.
List prices
At a glance
- Coding index
- Llama 3.1 8B Instruct not benchmarked, Mistral Small 3.1 24B not benchmarked.
- Widest category
- Coding, 18.4 points apart on average over 2 shared benchmarks.
- Widest single gap
- LMArena Text: Korean: Llama 3.1 8B Instruct 1053 against Mistral Small 3.1 24B 1207, 25.7 points apart on a 0 to 100 scale.
- Output price
- Llama 3.1 8B Instruct $0.08 against Mistral Small 3.1 24B $0.555 per million output tokens, 6.9x apart.
- Context window
- Llama 3.1 8B Instruct takes 131K tokens, Mistral Small 3.1 24B 128K.
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 | Llama 3.1 8B Instruct | Bars | Mistral Small 3.1 24B | Ties |
|---|---|---|---|---|
| Coding | 0 | 2 | ||
| Reasoning | 0 | 3 | ||
| Math | 0 | 2 | ||
| Knowledge | 0 | 4 | ||
| General | 0 | 16 | ||
| All shared boards | 0 | 27 |
CodingLike-for-likeSix of these boards feed the Vibe Coding Index02
| Benchmark | Llama 3.1 8B Instruct | Mistral Small 3.1 24B | Leader |
|---|---|---|---|
| AA Coding Index | 5.4 | Not measured | Only Llama 3.1 8B Instruct measured |
| LiveCodeBench (Artificial Analysis run) | 11.6% | Not measured | Only Llama 3.1 8B Instruct measured |
| Terminal-Bench Hard (Artificial Analysis run) | 0.8% | Not measured | Only Llama 3.1 8B Instruct measured |
| WeirdML | 1.7% | Not measured | Only Llama 3.1 8B Instruct measured |
| LMArena Text: coding | 1195 | 1309 | Mistral Small 3.1 24B |
| LMArena Text: software and IT | 1195 | 1301 | Mistral Small 3.1 24B |
| Neither model has a result on the other 33 boards here | |||
IntelligenceDirectional onlyPublic boards, shown as published, kept out of the index2 boards, none shared
| Benchmark | Llama 3.1 8B Instruct | Mistral Small 3.1 24B | Leader |
|---|---|---|---|
| AA Intelligence Index | 6.9 | Not measured | Only Llama 3.1 8B Instruct measured |
| Epoch Capabilities Index | 116.5 | Not measured | Only Llama 3.1 8B Instruct measured |
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index3 boards, none shared
| Benchmark | Llama 3.1 8B Instruct | Mistral Small 3.1 24B | Leader |
|---|---|---|---|
| τ²-Bench Telecom | 16.4% | Not measured | Only Llama 3.1 8B Instruct measured |
| BALROG | 15.1% | Not measured | Only Llama 3.1 8B Instruct measured |
| Berkeley Function Calling Leaderboard (BFCL) | 25.8% | Not measured | Only Llama 3.1 8B Instruct measured |
| Neither model has a result on the other 38 boards here | |||
ReasoningLike-for-likePublic boards, shown as published, kept out of the index03
| Benchmark | Llama 3.1 8B Instruct | Mistral Small 3.1 24B | Leader |
|---|---|---|---|
| GPQA Diamond (Artificial Analysis run) | 25.9% | Not measured | Only Llama 3.1 8B Instruct measured |
| Humanity's Last Exam (Artificial Analysis run) | 5.3% | Not measured | Only Llama 3.1 8B Instruct measured |
| GPQA Diamond (Epoch AI run) | 27.0% | Not measured | Only Llama 3.1 8B Instruct measured |
| LMArena Text: hard prompts | 1175 | 1278 | Mistral Small 3.1 24B |
| LMArena Text: expert | 1144 | 1257 | Mistral Small 3.1 24B |
| LMArena Text: hard prompts in English | 1196 | 1290 | Mistral Small 3.1 24B |
| LMArena Vision: diagrams | Not measured | 1119 | Only Mistral Small 3.1 24B measured |
| LMArena Vision: homework | Not measured | 1158 | Only Mistral Small 3.1 24B measured |
| Neither model has a result on the other 14 boards here | |||
MathLike-for-likePublic boards, shown as published, kept out of the index02
| Benchmark | Llama 3.1 8B Instruct | Mistral Small 3.1 24B | Leader |
|---|---|---|---|
| AA Math Index | 4.3 | Not measured | Only Llama 3.1 8B Instruct measured |
| AIME 2025 (Artificial Analysis run) | 4.3% | Not measured | Only Llama 3.1 8B Instruct measured |
| OTIS Mock AIME | 1.7% | Not measured | Only Llama 3.1 8B Instruct measured |
| MATH level 5 | 22.9% | Not measured | Only Llama 3.1 8B Instruct measured |
| GSM8K | 82.4% | Not measured | Only Llama 3.1 8B Instruct measured |
| LMArena Text: math | 1179 | 1261 | Mistral Small 3.1 24B |
| LMArena Text: mathematical work | 1180 | 1271 | Mistral Small 3.1 24B |
| Neither model has a result on the other 6 boards here | |||
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index04
| Benchmark | Llama 3.1 8B Instruct | Mistral Small 3.1 24B | Leader |
|---|---|---|---|
| MMLU Pro (Artificial Analysis run) | 47.6% | Not measured | Only Llama 3.1 8B Instruct measured |
| MMLU | 56.1% | Not measured | Only Llama 3.1 8B Instruct measured |
| LMArena Text: science | 1193 | 1265 | Mistral Small 3.1 24B |
| LMArena Text: medicine and healthcare | 1182 | 1267 | Mistral Small 3.1 24B |
| LMArena Text: legal and government | 1206 | 1271 | Mistral Small 3.1 24B |
| LMArena Text: business and finance | 1166 | 1257 | Mistral Small 3.1 24B |
| Neither model has a result on the other 12 boards here | |||
Web designNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Llama 3.1 8B Instruct | Mistral Small 3.1 24B | Leader |
|---|---|---|---|
| Neither model has a result on 9 boards here | |||
GeneralLike-for-likePublic boards, shown as published, kept out of the index016
| Benchmark | Llama 3.1 8B Instruct | Mistral Small 3.1 24B | Leader |
|---|---|---|---|
| IFBench | 28.6% | Not measured | Only Llama 3.1 8B Instruct measured |
| Long context reasoning (AA-LCR) | 18.0% | Not measured | Only Llama 3.1 8B Instruct measured |
| DTBench | 50.9% | Not measured | Only Llama 3.1 8B Instruct measured |
| LMCA | 5.4% | Not measured | Only Llama 3.1 8B Instruct measured |
| PIQA | 81.2% | Not measured | Only Llama 3.1 8B Instruct measured |
| LMArena Text | 1187 | 1277 | Mistral Small 3.1 24B |
| LMArena Text: instruction following | 1159 | 1263 | Mistral Small 3.1 24B |
| LMArena Text: creative writing | 1154 | 1252 | Mistral Small 3.1 24B |
| LMArena Vision | Not measured | 1136 | Only Mistral Small 3.1 24B measured |
| LMArena Text: English | 1218 | 1295 | Mistral Small 3.1 24B |
| LMArena Text: non-English | 1148 | 1255 | Mistral Small 3.1 24B |
| LMArena Text: Chinese | 1151 | 1253 | Mistral Small 3.1 24B |
| LMArena Text: German | 1144 | 1266 | Mistral Small 3.1 24B |
| LMArena Text: Japanese | 1061 | 1208 | Mistral Small 3.1 24B |
| LMArena Text: Korean | 1053 | 1207 | Mistral Small 3.1 24B |
| LMArena Text: French | 1178 | 1273 | Mistral Small 3.1 24B |
| LMArena Text: Spanish | 1169 | 1284 | Mistral Small 3.1 24B |
| LMArena Text: Russian | 1158 | 1263 | Mistral Small 3.1 24B |
| LMArena Text: Polish | Not measured | 1242 | Only Mistral Small 3.1 24B measured |
| LMArena Text: multi-turn | 1172 | 1270 | Mistral Small 3.1 24B |
| LMArena Text: longer queries | 1181 | 1299 | Mistral Small 3.1 24B |
| LMArena Text: writing and language | 1162 | 1268 | Mistral Small 3.1 24B |
| LMArena Text: entertainment and media | 1145 | 1250 | Mistral Small 3.1 24B |
| LMArena Vision: English | Not measured | 1157 | Only Mistral Small 3.1 24B measured |
| LMArena Vision: Chinese | Not measured | 1155 | Only Mistral Small 3.1 24B measured |
| LMArena Vision: reading text | Not measured | 1132 | Only Mistral Small 3.1 24B measured |
| LMArena Vision: humor | Not measured | 1142 | Only Mistral Small 3.1 24B measured |
| LMArena Vision: captioning | Not measured | 1153 | Only Mistral Small 3.1 24B measured |
| LMArena Vision: recognizing things | Not measured | 1155 | Only Mistral Small 3.1 24B measured |
| LMArena Vision: creative writing | Not measured | 1123 | Only Mistral Small 3.1 24B measured |
| Neither model has a result on the other 16 boards here | |||
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Llama 3.1 8B Instruct | Mistral Small 3.1 24B | 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
Llama 3.1 8B Instruct costs less
Repository review
50K input + 3K output tokens
Llama 3.1 8B Instruct costs less
Agent loop
200K input + 10K output tokens
Llama 3.1 8B Instruct 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 | Meta Llama 3.1 8B Instruct | Mistral Small 3.1 24B |
|---|---|---|
| Maker | Meta Llama | Mistral AI |
| Weights | Open weights | Open weights |
| Released | July 23, 2024 | March 17, 2025 |
| Context window | 131K | 128K |
| Input $/Mtok | $0.05 | $0.351 |
| Output $/Mtok | $0.08 | $0.555 |
| 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 Llama 3.1 8B Instruct better than Mistral Small 3.1 24B for coding?
Neither model has a coding score yet, so the two cannot be ranked on coding. Pick Llama 3.1 8B Instruct for output tokens 6.9x cheaper ($0.08 vs $0.555 per million) and a larger context window (131K against 128K tokens).
Which is cheaper, Llama 3.1 8B Instruct or Mistral Small 3.1 24B?
Llama 3.1 8B Instruct costs $0.05 per million input tokens and $0.08 per million output tokens; Mistral Small 3.1 24B costs $0.351 and $0.555. Cost per solved task is known for neither of them.
Which has the bigger context window, Llama 3.1 8B Instruct or Mistral Small 3.1 24B?
Llama 3.1 8B Instruct, with 131K tokens against 128K.
How many benchmarks is the Llama 3.1 8B Instruct vs Mistral Small 3.1 24B comparison based on?
27 benchmarks have a result for both models as of October 22, 2026. Llama 3.1 8B Instruct's coding index rests on 0 independent benchmarks and Mistral Small 3.1 24B's on 0. Where only one model has a result, the page says so instead of naming a winner.