Devstral 2 2512 vs Muse Glimmer 30B
Muse Glimmer 30B leads Devstral 2 2512 on the Artificial Analysis Intelligence Index, 17.5 to 8.6, and Muse Glimmer 30B costs 1.5x less per output token ($1.35 vs $2.00 per million). Updated October 21, 2026; 3 benchmarks have a result for both.
Devstral 2 2512 or Muse Glimmer 30B: which to pick
Neither model has a coding score yet, so the two cannot be ranked on coding.
Pick Devstral 2 2512 for a larger context window (262K against 131K tokens) and work measured by AA Coding Index or AA Intelligence Index, where it leads.
- Shared results
- 3
- Devstral 2 2512 only
- 3
- Muse Glimmer 30B only
- 2
- 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
Muse Glimmer 30B
Muse Glimmer 30B leads, 17.5 against 8.6.
Same board, both measured
Agentic work
AA Agentic Index
Muse Glimmer 30B
Muse Glimmer 30B leads, 8.5 against 2.3.
Same board, both measured
Long documents
Listed context window
Devstral 2 2512
Devstral 2 2512 takes 262K tokens against 131K.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
Muse Glimmer 30B
Devstral 2 2512 $0.0014, Muse Glimmer 30B $0.0010 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, Muse Glimmer 30B not benchmarked.
- Widest category
- Coding, 17.7 points apart on average over 1 shared benchmark.
- Widest single gap
- AA Coding Index: Devstral 2 2512 31.3 against Muse Glimmer 30B 49.0, 17.7 points apart on a 0 to 100 scale.
- Output price
- Devstral 2 2512 $2.00 against Muse Glimmer 30B $1.35 per million output tokens, 1.5x apart.
- Context window
- Devstral 2 2512 takes 262K tokens, Muse Glimmer 30B 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 | Devstral 2 2512 | Bars | Muse Glimmer 30B | 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 | Muse Glimmer 30B | Leader |
|---|---|---|---|
| SWE-bench Verified | 53.8% | Not measured | Only Devstral 2 2512 measured |
| AA Coding Index | 31.3 | 49.0 | Muse Glimmer 30B |
| 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 |
| ALE-Bench | Not measured | 962.5 | Only Muse Glimmer 30B measured |
| Neither model has a result on the other 33 boards here | |||
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index01
| Benchmark | Devstral 2 2512 | Muse Glimmer 30B | Leader |
|---|---|---|---|
| AA Intelligence Index | 8.6 | 17.5 | Muse Glimmer 30B |
| Neither model has a result on the other 1 board here | |||
Agentic workLike-for-likePublic boards, shown as published, kept out of the index01
| Benchmark | Devstral 2 2512 | Muse Glimmer 30B | Leader |
|---|---|---|---|
| AA Agentic Index | 2.3 | 8.5 | Muse Glimmer 30B |
| Neither model has a result on the other 38 boards here | |||
ReasoningNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Devstral 2 2512 | Muse Glimmer 30B | Leader |
|---|---|---|---|
| Neither model has a result on 21 boards here | |||
MathNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Devstral 2 2512 | Muse Glimmer 30B | Leader |
|---|---|---|---|
| Neither model has a result on 13 boards here | |||
KnowledgeNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Devstral 2 2512 | Muse Glimmer 30B | Leader |
|---|---|---|---|
| Neither model has a result on 17 boards here | |||
Web designDirectional onlyPublic boards, shown as published, kept out of the index1 board, none shared
| Benchmark | Devstral 2 2512 | Muse Glimmer 30B | Leader |
|---|---|---|---|
| Design Arena: game dev | Not measured | 1179 | Only Muse Glimmer 30B measured |
| Neither model has a result on the other 8 boards here | |||
GeneralNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Devstral 2 2512 | Muse Glimmer 30B | Leader |
|---|---|---|---|
| Neither model has a result on 46 boards here | |||
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Devstral 2 2512 | Muse Glimmer 30B | 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
Muse Glimmer 30B costs less
Repository review
50K input + 3K output tokens
Muse Glimmer 30B costs less
Agent loop
200K input + 10K output tokens
Muse Glimmer 30B 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 | Meta Muse Glimmer 30B |
|---|---|---|
| Maker | Mistral AI | Meta |
| Weights | Open weights | Open weights |
| Released | December 9, 2025 | August 9, 2026 |
| Context window | 262K | 131K |
| Input $/Mtok | $0.40 | $0.325 |
| Output $/Mtok | $2.00 | $1.35 |
| Coding index | Not benchmarked | Not benchmarked |
| Independent measurements behind it | 1 | 0 |
| Cost per solved task | $1.19 | Not computable |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is Devstral 2 2512 better than Muse Glimmer 30B for coding?
Neither model has a coding score yet, so the two cannot be ranked on coding. Pick Devstral 2 2512 for a larger context window (262K against 131K tokens) and work measured by AA Coding Index or AA Intelligence Index, where it leads.
Which is cheaper, Devstral 2 2512 or Muse Glimmer 30B?
Devstral 2 2512 costs $0.40 per million input tokens and $2.00 per million output tokens; Muse Glimmer 30B costs $0.325 and $1.35. Cost per solved task is known for Devstral 2 2512 only.
Which has the bigger context window, Devstral 2 2512 or Muse Glimmer 30B?
Devstral 2 2512, with 262K tokens against 131K.
How many benchmarks is the Devstral 2 2512 vs Muse Glimmer 30B comparison based on?
3 benchmarks have a result for both models as of October 21, 2026. Devstral 2 2512's coding index rests on 1 independent benchmark and Muse Glimmer 30B's on 0. Where only one model has a result, the page says so instead of naming a winner.