# 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.

- Canonical page: https://noometry.com/compare/gpt-5-2-pro-vs-reka-flash-3
- Last updated: 2026-10-12
- Shared benchmarks: 0

## 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.

## Snapshot

| | GPT-5.2 Pro | Reka Flash 3 |
|---|---|---|
| Provider | OpenAI | Reka |
| Noometry Index | 52.3 | 36.8 |
| Rank | 39 | — |
| Context | 400K | 66K |
| Input $/M | $21 | $0.10 |
| Output $/M | $168 | $0.20 |
| Weights | Proprietary | Open |

## Agentic & Tool Use

- GPT-5.2 Pro: —
- Reka Flash 3: 30.4

| Benchmark | GPT-5.2 Pro | Reka Flash 3 |
|---|---|---|
| BALROG | — | 29.2% |

## Reasoning

- 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

- 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

- GPT-5.2 Pro: —
- Reka Flash 3: 43.7

| Benchmark | GPT-5.2 Pro | Reka Flash 3 |
|---|---|---|
| EQ-Bench Creative Writing | — | 1228 |

## FAQ

### 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.