Devstral 2 2512 vs Gemma 4 26B A4B
Gemma 4 26B A4B leads Devstral 2 2512 on the Artificial Analysis Intelligence Index, 16.7 to 8.6, and Gemma 4 26B A4B costs 3.3x less per output token ($0.60 vs $2.00 per million). Updated October 22, 2026; 3 benchmarks have a result for both.
Devstral 2 2512 or Gemma 4 26B A4B: which to pick
Neither model has a coding score yet, so the two cannot be ranked on coding.
Pick Devstral 2 2512 for work measured by AA Coding Index or AA Intelligence Index, where it leads.
- Shared results
- 3
- Devstral 2 2512 only
- 3
- Gemma 4 26B A4B only
- 52
- Like-for-like categories
- 3 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
Gemma 4 26B A4B
Gemma 4 26B A4B leads, 16.7 against 8.6.
Same board, both measured
Agentic work
AA Agentic Index
Gemma 4 26B A4B
Gemma 4 26B A4B leads, 2.9 against 2.3.
Same board, both measured
Long documents
Listed context window
No call
Both take 262K tokens.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
Gemma 4 26B A4B
Devstral 2 2512 $0.0014, Gemma 4 26B A4B $0.0004 per turn.
List prices
Cost per solved task
One SWE-bench Verified task, solved
No call
Only Devstral 2 2512 has the number, $1.19.
Directional only
At a glance
- Coding index
- Devstral 2 2512 not benchmarked, Gemma 4 26B A4B not benchmarked.
- Widest category
- Intelligence, 8.1 points apart on average over 1 shared benchmark.
- Widest single gap
- AA Intelligence Index: Devstral 2 2512 8.6 against Gemma 4 26B A4B 16.7, 8.1 points apart on a 0 to 100 scale.
- Output price
- Devstral 2 2512 $2.00 against Gemma 4 26B A4B $0.60 per million output tokens, 3.3x apart.
- Context window
- Both take 262K tokens.
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 | Devstral 2 2512 | Bars | Gemma 4 26B A4B | Ties |
|---|---|---|---|---|
| Coding | 0 | 1 | ||
| Intelligence | 0 | 1 | ||
| Agentic work | 0 | 1 | ||
| All shared boards | 0 | 3 |
CodingLike-for-likeSix of these boards feed the Vibe Coding Index01
| Benchmark | Devstral 2 2512 | Gemma 4 26B A4B | Leader |
|---|---|---|---|
| SWE-bench Verified | 53.8% | Not measured | Only Devstral 2 2512 measured |
| LMArena WebDev | Not measured | 1360 | Only Gemma 4 26B A4B measured |
| AA Coding Index | 31.3 | 39.3 | Gemma 4 26B A4B |
| LiveCodeBench (Vals AI) | 51.8% | Not measured | Only Devstral 2 2512 measured |
| SWE-bench Verified (Vals AI) | 62.8% | Not measured | Only Devstral 2 2512 measured |
| SciCode | Not measured | 40.0% | Only Gemma 4 26B A4B measured |
| Terminal-Bench Hard (Artificial Analysis run) | Not measured | 25.0% | Only Gemma 4 26B A4B measured |
| WeirdML | Not measured | 35.2% | Only Gemma 4 26B A4B measured |
| ALE-Bench | Not measured | 927.2 | Only Gemma 4 26B A4B measured |
| LMArena Text: coding | Not measured | 1446 | Only Gemma 4 26B A4B measured |
| LMArena Text: software and IT | Not measured | 1454 | Only Gemma 4 26B A4B measured |
| LMArena WebDev: React | Not measured | 1351 | Only Gemma 4 26B A4B measured |
| LMArena WebDev: HTML | Not measured | 1362 | Only Gemma 4 26B A4B measured |
| Neither model has a result on the other 26 boards here | |||
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index01
| Benchmark | Devstral 2 2512 | Gemma 4 26B A4B | Leader |
|---|---|---|---|
| AA Intelligence Index | 8.6 | 16.7 | Gemma 4 26B A4B |
| Epoch Capabilities Index | Not measured | 141.9 | Only Gemma 4 26B A4B measured |
Agentic workLike-for-likePublic boards, shown as published, kept out of the index01
| Benchmark | Devstral 2 2512 | Gemma 4 26B A4B | Leader |
|---|---|---|---|
| AA Agentic Index | 2.3 | 2.9 | Gemma 4 26B A4B |
| τ²-Bench Telecom | Not measured | 43.6% | Only Gemma 4 26B A4B measured |
| Neither model has a result on the other 39 boards here | |||
ReasoningDirectional onlyPublic boards, shown as published, kept out of the index8 boards, none shared
| Benchmark | Devstral 2 2512 | Gemma 4 26B A4B | Leader |
|---|---|---|---|
| GPQA Diamond (Artificial Analysis run) | Not measured | 79.2% | Only Gemma 4 26B A4B measured |
| Humanity's Last Exam (Artificial Analysis run) | Not measured | 19.3% | Only Gemma 4 26B A4B measured |
| GPQA Diamond (Epoch AI run) | Not measured | 73.2% | Only Gemma 4 26B A4B measured |
| LMArena Text: hard prompts | Not measured | 1438 | Only Gemma 4 26B A4B measured |
| LMArena Text: expert | Not measured | 1447 | Only Gemma 4 26B A4B measured |
| LMArena Text: hard prompts in English | Not measured | 1448 | Only Gemma 4 26B A4B measured |
| LMArena Vision: diagrams | Not measured | 1264 | Only Gemma 4 26B A4B measured |
| LMArena Vision: homework | Not measured | 1293 | Only Gemma 4 26B A4B measured |
| Neither model has a result on the other 14 boards here | |||
MathDirectional onlyPublic boards, shown as published, kept out of the index3 boards, none shared
| Benchmark | Devstral 2 2512 | Gemma 4 26B A4B | Leader |
|---|---|---|---|
| OTIS Mock AIME | Not measured | 82.2% | Only Gemma 4 26B A4B measured |
| LMArena Text: math | Not measured | 1470 | Only Gemma 4 26B A4B measured |
| LMArena Text: mathematical work | Not measured | 1475 | Only Gemma 4 26B A4B measured |
| Neither model has a result on the other 10 boards here | |||
KnowledgeDirectional onlyPublic boards, shown as published, kept out of the index5 boards, none shared
| Benchmark | Devstral 2 2512 | Gemma 4 26B A4B | Leader |
|---|---|---|---|
| LMArena Text: science | Not measured | 1446 | Only Gemma 4 26B A4B measured |
| LMArena Text: medicine and healthcare | Not measured | 1428 | Only Gemma 4 26B A4B measured |
| LMArena Text: legal and government | Not measured | 1457 | Only Gemma 4 26B A4B measured |
| LMArena Text: business and finance | Not measured | 1429 | Only Gemma 4 26B A4B measured |
| FACTS Benchmark Suite | Not measured | 42.7% | Only Gemma 4 26B A4B measured |
| Neither model has a result on the other 13 boards here | |||
Web designNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Devstral 2 2512 | Gemma 4 26B A4B | Leader |
|---|---|---|---|
| Neither model has a result on 9 boards here | |||
GeneralDirectional onlyPublic boards, shown as published, kept out of the index25 boards, none shared
| Benchmark | Devstral 2 2512 | Gemma 4 26B A4B | Leader |
|---|---|---|---|
| IFBench | Not measured | 72.4% | Only Gemma 4 26B A4B measured |
| Long context reasoning (AA-LCR) | Not measured | 65.7% | Only Gemma 4 26B A4B measured |
| DTBench | Not measured | 74.9% | Only Gemma 4 26B A4B measured |
| LMCA | Not measured | 29.7% | Only Gemma 4 26B A4B measured |
| LMArena Text | Not measured | 1434 | Only Gemma 4 26B A4B measured |
| LMArena Text: instruction following | Not measured | 1420 | Only Gemma 4 26B A4B measured |
| LMArena Text: creative writing | Not measured | 1400 | Only Gemma 4 26B A4B measured |
| LMArena Vision | Not measured | 1260 | Only Gemma 4 26B A4B measured |
| LMArena Text: English | Not measured | 1444 | Only Gemma 4 26B A4B measured |
| LMArena Text: non-English | Not measured | 1421 | Only Gemma 4 26B A4B measured |
| LMArena Text: Chinese | Not measured | 1495 | Only Gemma 4 26B A4B measured |
| LMArena Text: French | Not measured | 1460 | Only Gemma 4 26B A4B measured |
| LMArena Text: Spanish | Not measured | 1415 | Only Gemma 4 26B A4B measured |
| LMArena Text: Russian | Not measured | 1434 | Only Gemma 4 26B A4B measured |
| LMArena Text: multi-turn | Not measured | 1441 | Only Gemma 4 26B A4B measured |
| LMArena Text: longer queries | Not measured | 1427 | Only Gemma 4 26B A4B measured |
| LMArena Text: writing and language | Not measured | 1405 | Only Gemma 4 26B A4B measured |
| LMArena Text: entertainment and media | Not measured | 1403 | Only Gemma 4 26B A4B measured |
| LMArena Vision: English | Not measured | 1256 | Only Gemma 4 26B A4B measured |
| LMArena Vision: Chinese | Not measured | 1312 | Only Gemma 4 26B A4B measured |
| LMArena Vision: reading text | Not measured | 1268 | Only Gemma 4 26B A4B measured |
| LMArena Vision: humor | Not measured | 1272 | Only Gemma 4 26B A4B measured |
| LMArena Vision: captioning | Not measured | 1297 | Only Gemma 4 26B A4B measured |
| LMArena Vision: recognizing things | Not measured | 1191 | Only Gemma 4 26B A4B measured |
| LMArena Vision: creative writing | Not measured | 1256 | Only Gemma 4 26B A4B measured |
| Neither model has a result on the other 21 boards here | |||
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Devstral 2 2512 | Gemma 4 26B A4B | 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
Gemma 4 26B A4B costs less
Repository review
50K input + 3K output tokens
Gemma 4 26B A4B costs less
Agent loop
200K input + 10K output tokens
Gemma 4 26B A4B 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 | Mistral Devstral 2 2512 | Google Gemma 4 26B A4B |
|---|---|---|
| Maker | Mistral AI | |
| Weights | Open weights | Open weights |
| Released | December 9, 2025 | April 3, 2026 |
| Context window | 262K | 262K |
| Input $/Mtok | $0.40 | $0.15 |
| Output $/Mtok | $2.00 | $0.60 |
| Coding index | Not benchmarked | Not benchmarked |
| Independent measurements behind it | 1 | 1 |
| Cost per solved task | $1.19 | Not computable |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is Devstral 2 2512 better than Gemma 4 26B A4B for coding?
Neither model has a coding score yet, so the two cannot be ranked on coding. Pick Devstral 2 2512 for work measured by AA Coding Index or AA Intelligence Index, where it leads.
Which is cheaper, Devstral 2 2512 or Gemma 4 26B A4B?
Devstral 2 2512 costs $0.40 per million input tokens and $2.00 per million output tokens; Gemma 4 26B A4B costs $0.15 and $0.60. Cost per solved task is known for Devstral 2 2512 only.
Which has the bigger context window, Devstral 2 2512 or Gemma 4 26B A4B?
Neither: both take 262K tokens.
How many benchmarks is the Devstral 2 2512 vs Gemma 4 26B A4B comparison based on?
3 benchmarks have a result for both models as of October 22, 2026. Devstral 2 2512's coding index rests on 1 independent benchmark and Gemma 4 26B A4B's on 1. Where only one model has a result, the page says so instead of naming a winner.