Model comparison
Grok 4.7 vs Reka Flash 3
Grok 4.7 has enough public results to be ranked (#56); Reka Flash 3 does not yet, so treat this comparison as directional.
Last verified . 1 shared benchmarks.
Summary
- They share 1 benchmark with published results for both. Grok 4.7 scores higher in 1 category and Reka Flash 3 in 0 categories; one gap is clear of the uncertainty.
- The widest gap is in writing & preference, where Grok 4.7 leads 70.1 to 43.8.
- Reka Flash 3 is cheaper at $0.10 / $0.20 per million input/output tokens, against $2 / $6 for Grok 4.7.
- Grok 4.7 accepts more context: 500K tokens versus 66K.
- Reka Flash 3 has downloadable open weights; the other is API-only.
Side by side
| Grok 4.7 | Reka Flash 3 | |
|---|---|---|
| Provider | xAI | Reka |
| Noometry Index | 46.6 | 36.4 |
| Released | 2026-09-21 | 2025-03-10 |
| Weights | Proprietary | Open |
| Context window | 500K | 66K |
| Max output | 500K | 59K |
| Input $ / M tokens | $2 | $0.10 |
| Output $ / M tokens | $6 | $0.20 |
| Results tracked | 21 | 2 |
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Category by category
Coding Not comparable
Grok 4.7: 55.0 (#23), Reka Flash 3: —
| Benchmark | Grok 4.7 | Reka Flash 3 |
|---|---|---|
| CursorBench | 46.3% | — |
| LMArena WebDev | 1636 | — |
| FrontierSWE | 29.5% | — |
| SciCode | 57.4% | — |
| LMArena Coding | 1423 | — |
Agentic & Tool Use Not comparable
Grok 4.7: —, Reka Flash 3: 30.1
| Benchmark | Grok 4.7 | Reka Flash 3 |
|---|---|---|
| BALROG | — | 29.2% |
Reasoning Not comparable
Grok 4.7: 40.1 (#49), Reka Flash 3: —
| Benchmark | Grok 4.7 | Reka Flash 3 |
|---|---|---|
| NYT Connections (extended) | 76.8% | — |
| CritPt | 17.7% | — |
| LMArena Hard Prompts | 1409 | — |
Math Not comparable
Grok 4.7: 41.1 (#73), Reka Flash 3: —
| Benchmark | Grok 4.7 | Reka Flash 3 |
|---|---|---|
| ProofBench | 34% | — |
| LMArena Math | 1393 | — |
Knowledge Not comparable
Grok 4.7: 38.7 (#130), Reka Flash 3: —
| Benchmark | Grok 4.7 | Reka Flash 3 |
|---|---|---|
| LMArena Expert | 1413 | — |
Multimodal Not comparable
Grok 4.7: 28.8 (#107), Reka Flash 3: —
| Benchmark | Grok 4.7 | Reka Flash 3 |
|---|---|---|
| Furniture Assembly | 20.8% | — |
Multilingual Not comparable
Grok 4.7: 51.2 (#108), Reka Flash 3: —
| Benchmark | Grok 4.7 | Reka Flash 3 |
|---|---|---|
| LMArena Non-English | 1392 | — |
| LMArena Chinese | 1476 | — |
| LMArena Russian | 1396 | — |
Instruction Following Not comparable
Grok 4.7: 74.3 (#98), Reka Flash 3: —
| Benchmark | Grok 4.7 | Reka Flash 3 |
|---|---|---|
| LMArena Instruction Following | 1406 | — |
Long Context Not comparable
Grok 4.7: 43.2 (#97), Reka Flash 3: —
| Benchmark | Grok 4.7 | Reka Flash 3 |
|---|---|---|
| LMArena Longer Query | 1416 | — |
Writing & Preference Grok 4.7 leads
Grok 4.7: 70.1 (#23), Reka Flash 3: 43.8
| Benchmark | Grok 4.7 | Reka Flash 3 |
|---|---|---|
| EQ-Bench Creative Writing | 2007 | 1228 |
| LMArena Text | 1397 | — |
| LMArena Creative Writing | 1391 | — |
| LMArena Multi-Turn | 1389 | — |
Frequently asked questions
Is Grok 4.7 better than Reka Flash 3?
Grok 4.7 has enough public results to be ranked (#56); Reka Flash 3 does not yet, so treat this comparison as directional.
Which is cheaper, Grok 4.7 or Reka Flash 3?
Reka Flash 3 is cheaper. It lists at $0.10 per million input tokens and $0.20 per million output tokens; Grok 4.7 lists at $2 and $6.
Which has the bigger context window?
Grok 4.7 does, with 500K tokens against 66K.
How many benchmarks do Grok 4.7 and Reka Flash 3 share?
1 benchmark has published results for both models. Grok 4.7 has 21 scored results on Noometry and Reka Flash 3 has 2.