Model comparison
GPT-5.2 Pro vs Reka Flash 3
GPT-5.2 Pro has enough public results to be ranked (#39); Reka Flash 3 does not yet, so treat this comparison as directional.
Last verified . 0 shared benchmarks.
Summary
- Reka Flash 3 is cheaper at $0.10 / $0.20 per million input/output tokens, against $21 / $168 for GPT-5.2 Pro.
- GPT-5.2 Pro accepts more context: 400K tokens versus 66K.
- Reka Flash 3 has downloadable open weights; the other is API-only.
Side by side
| GPT-5.2 Pro | Reka Flash 3 | |
|---|---|---|
| Provider | OpenAI | Reka |
| Noometry Index | 52.3 | 36.8 |
| Released | 2025-12-11 | 2025-03-10 |
| Weights | Proprietary | Open |
| Context window | 400K | 66K |
| Max output | 128K | 59K |
| Input $ / M tokens | $21 | $0.10 |
| Output $ / M tokens | $168 | $0.20 |
| Results tracked | 8 | 2 |
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Category by category
Agentic & Tool Use Not comparable
GPT-5.2 Pro: —, Reka Flash 3: 30.4
| Benchmark | GPT-5.2 Pro | Reka Flash 3 |
|---|---|---|
| BALROG | — | 29.2% |
Reasoning Not comparable
GPT-5.2 Pro: 51.5 (#33), Reka Flash 3: —
| Benchmark | GPT-5.2 Pro | Reka Flash 3 |
|---|---|---|
| ARC-AGI-2 | 54.2% | — |
| SimpleBench | 57.4% | — |
| NYT Connections (extended) | 79.3% | — |
| ARC-AGI-1 | 90.5% | — |
| Epoch Capabilities Index | 155.4 | — |
Math Not comparable
GPT-5.2 Pro: 65.3 (#29), Reka Flash 3: —
| Benchmark | GPT-5.2 Pro | Reka Flash 3 |
|---|---|---|
| FrontierMath (Tiers 1-3) | 74% | — |
| FrontierMath Tier 4 | 46% | — |
| FrontierMath Tier 4 (v1) | 31.3% | — |
Writing & Preference Not comparable
GPT-5.2 Pro: —, Reka Flash 3: 43.7
| Benchmark | GPT-5.2 Pro | Reka Flash 3 |
|---|---|---|
| EQ-Bench Creative Writing | — | 1228 |
Frequently asked questions
Is GPT-5.2 Pro better than Reka Flash 3?
GPT-5.2 Pro has enough public results to be ranked (#39); Reka Flash 3 does not yet, so treat this comparison as directional.
Which is cheaper, GPT-5.2 Pro 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; GPT-5.2 Pro lists at $21 and $168.
Which has the bigger context window?
GPT-5.2 Pro does, with 400K tokens against 66K.
How many benchmarks do GPT-5.2 Pro and Reka Flash 3 share?
0 benchmarks have published results for both models. GPT-5.2 Pro has 8 scored results on Noometry and Reka Flash 3 has 2.