Granite 4.0 Micro vs Reka Flash 3
Reka Flash 3 leads Granite 4.0 Micro on the Artificial Analysis Intelligence Index, 6.4 to 5.1, and Granite 4.0 Micro costs 1.8x less per output token ($0.112 vs $0.20 per million). Updated October 23, 2026; 11 benchmarks have a result for both.
Granite 4.0 Micro or Reka Flash 3: which to pick
Neither model has a coding score yet, so the two cannot be ranked on coding.
Pick Granite 4.0 Micro for output tokens 1.8x cheaper ($0.112 vs $0.20 per million) and a larger context window (131K against 66K tokens).
- Shared results
- 11
- Granite 4.0 Micro only
- 2
- Reka Flash 3 only
- 1
- 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.
Coding
Vibe Coding Index, six public coding benchmarks
No call
Neither has a coding score yet.
One side not measured
Intelligence
AA Intelligence Index
Reka Flash 3
Reka Flash 3 leads, 6.4 against 5.1.
Same board, both measured
Long documents
Listed context window
Granite 4.0 Micro
Granite 4.0 Micro takes 131K tokens against 66K.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
Granite 4.0 Micro
Granite 4.0 Micro $0.0001, Reka Flash 3 $0.0002 per turn.
List prices
At a glance
- Coding index
- Granite 4.0 Micro not benchmarked, Reka Flash 3 not benchmarked.
- Widest category
- Math, 27.7 points apart on average over 2 shared benchmarks.
- Widest single gap
- AA Math Index: Granite 4.0 Micro 6.0 against Reka Flash 3 33.7, 27.7 points apart on a 0 to 100 scale.
- Output price
- Granite 4.0 Micro $0.112 against Reka Flash 3 $0.20 per million output tokens, 1.8x apart.
- Context window
- Granite 4.0 Micro takes 131K tokens, Reka Flash 3 66K.
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 | Granite 4.0 Micro | Bars | Reka Flash 3 | Ties |
|---|---|---|---|---|
| Coding | 1 | 1 | ||
| Intelligence | 0 | 1 | ||
| Agentic work | 1 | 0 | ||
| Reasoning | 1 | 1 | ||
| Math | 0 | 2 | ||
| Knowledge | 0 | 1 | ||
| General | 1 | 1 | ||
| All shared boards | 4 | 7 |
CodingLike-for-likeSix of these boards feed the Vibe Coding Index11
| Benchmark | Granite 4.0 Micro | Reka Flash 3 | Leader |
|---|---|---|---|
| LiveCodeBench (Artificial Analysis run) | 18.0% | 43.5% | Reka Flash 3 |
| Terminal-Bench Hard (Artificial Analysis run) | 1.5% | 0.0% | Granite 4.0 Micro |
| Neither model has a result on the other 41 boards here | |||
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index01
| Benchmark | Granite 4.0 Micro | Reka Flash 3 | Leader |
|---|---|---|---|
| AA Intelligence Index | 5.1 | 6.4 | Reka Flash 3 |
| Neither model has a result on the other 1 board here | |||
Agentic workLike-for-likePublic boards, shown as published, kept out of the index10
| Benchmark | Granite 4.0 Micro | Reka Flash 3 | Leader |
|---|---|---|---|
| τ²-Bench Telecom | 12.6% | 0.0% | Granite 4.0 Micro |
| BALROG | Not measured | 29.2% | Only Reka Flash 3 measured |
| Neither model has a result on the other 40 boards here | |||
ReasoningLike-for-likePublic boards, shown as published, kept out of the index11
| Benchmark | Granite 4.0 Micro | Reka Flash 3 | Leader |
|---|---|---|---|
| GPQA Diamond (Artificial Analysis run) | 33.6% | 52.9% | Reka Flash 3 |
| Humanity's Last Exam (Artificial Analysis run) | 5.0% | 4.4% | Granite 4.0 Micro |
| GPQA Diamond (Epoch AI run) | 28.3% | Not measured | Only Granite 4.0 Micro measured |
| Neither model has a result on the other 20 boards here | |||
MathLike-for-likePublic boards, shown as published, kept out of the index02
| Benchmark | Granite 4.0 Micro | Reka Flash 3 | Leader |
|---|---|---|---|
| AA Math Index | 6.0 | 33.7 | Reka Flash 3 |
| AIME 2025 (Artificial Analysis run) | 6.0% | 33.7% | Reka Flash 3 |
| OTIS Mock AIME | 2.8% | Not measured | Only Granite 4.0 Micro measured |
| Neither model has a result on the other 11 boards here | |||
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index01
| Benchmark | Granite 4.0 Micro | Reka Flash 3 | Leader |
|---|---|---|---|
| MMLU Pro (Artificial Analysis run) | 44.7% | 66.9% | Reka Flash 3 |
| Neither model has a result on the other 19 boards here | |||
Web designNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Granite 4.0 Micro | Reka Flash 3 | Leader |
|---|---|---|---|
| Neither model has a result on 9 boards here | |||
GeneralLike-for-likePublic boards, shown as published, kept out of the index11
| Benchmark | Granite 4.0 Micro | Reka Flash 3 | Leader |
|---|---|---|---|
| IFBench | 24.8% | 30.4% | Reka Flash 3 |
| Long context reasoning (AA-LCR) | 7.0% | 0.0% | Granite 4.0 Micro |
| Neither model has a result on the other 46 boards here | |||
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Granite 4.0 Micro | Reka Flash 3 | 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
Granite 4.0 Micro costs less
Repository review
50K input + 3K output tokens
Granite 4.0 Micro costs less
Agent loop
200K input + 10K output tokens
Granite 4.0 Micro 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 | IBM Granite 4.0 Micro | Reka Flash 3 |
|---|---|---|
| Maker | IBM Granite | Reka |
| Weights | Open weights | Open weights |
| Released | October 20, 2025 | March 12, 2025 |
| Context window | 131K | 66K |
| Input $/Mtok | $0.017 | $0.10 |
| Output $/Mtok | $0.112 | $0.20 |
| 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 Granite 4.0 Micro better than Reka Flash 3 for coding?
Neither model has a coding score yet, so the two cannot be ranked on coding. Pick Granite 4.0 Micro for output tokens 1.8x cheaper ($0.112 vs $0.20 per million) and a larger context window (131K against 66K tokens).
Which is cheaper, Granite 4.0 Micro or Reka Flash 3?
Granite 4.0 Micro costs $0.017 per million input tokens and $0.112 per million output tokens; Reka Flash 3 costs $0.10 and $0.20. Cost per solved task is known for neither of them.
Which has the bigger context window, Granite 4.0 Micro or Reka Flash 3?
Granite 4.0 Micro, with 131K tokens against 66K.
How many benchmarks is the Granite 4.0 Micro vs Reka Flash 3 comparison based on?
11 benchmarks have a result for both models as of October 23, 2026. Granite 4.0 Micro's coding index rests on 0 independent benchmarks and Reka Flash 3's on 0. Where only one model has a result, the page says so instead of naming a winner.