ERNIE 4.5 Pro vs Reka Core Pro: which model should you choose?
We compared ERNIE 4.5 Pro and Reka Core Pro on price, context window and 12 benchmarks. ERNIE 4.5 Pro has the stronger average benchmark score; ERNIE 4.5 Pro is cheaper on a blended 3:1 basis.
ERNIE 4.5 Pro
ERNIE 4.5 Pro is a multimodal model from Baidu. It offers a 1,000,000-token context window, costs $13.89 per million input tokens and $65.19 per million output tokens, and averages 80.5 across the index's benchmark suite.
- Input
- $13.89 / 1M
- Output
- $65.19 / 1M
- Context
- 1,000,000
- Avg score
- 80.5
- Open weights
- No
Reka Core Pro
Reka Core Pro is a multimodal model from Reka AI. It offers a 65,536-token context window, costs $13.44 per million input tokens and $69.38 per million output tokens, and averages 79.9 across the index's benchmark suite.
- Input
- $13.44 / 1M
- Output
- $69.38 / 1M
- Context
- 65,536
- Avg score
- 79.9
- Open weights
- No
Specification comparison
| Spec | ERNIE 4.5 Pro | Reka Core Pro | Edge |
|---|---|---|---|
| Input price / 1M | $13.89 | $13.44 | B |
| Output price / 1M | $65.19 | $69.38 | A |
| Context window | 1,000,000 | 65,536 | A |
| Max output | 32,768 | 65,536 | B |
| Average score | 80.5 | 79.9 | A |
| Arena Elo | 1414.3 | 1421.1 | B |
| Open weights | No | No | Tie |
Benchmark comparison
ERNIE 4.5 Pro wins 6, Reka Core Pro wins 5, and 1 benchmarks are tied. The table shows the modelled score for each model and the gap.
| Benchmark | ERNIE 4.5 Pro | Reka Core Pro | Gap | Winner |
|---|---|---|---|---|
| MMLU-Pro | 80.3 | 83.2 | 2.9 | Reka Core Pro |
| GPQA Diamond | 74.7 | 78.0 | 3.3 | Reka Core Pro |
| SWE-bench Verified | 66.5 | 66.8 | 0.3 | Reka Core Pro |
| HumanEval | 86.9 | 83.4 | 3.5 | ERNIE 4.5 Pro |
| MATH-500 | 87.2 | 85.9 | 1.3 | ERNIE 4.5 Pro |
| AIME 2025 | 76.3 | 75.8 | 0.5 | ERNIE 4.5 Pro |
| LiveCodeBench | 76.4 | 71.8 | 4.6 | ERNIE 4.5 Pro |
| IFEval | 86.0 | 86.0 | 0.0 | Tie |
| TruthfulQA | 83.1 | 83.4 | 0.3 | Reka Core Pro |
| HellaSwag | 90.2 | 88.7 | 1.5 | ERNIE 4.5 Pro |
| MMMU | 78.4 | 76.4 | 2.0 | ERNIE 4.5 Pro |
| Arena Elo | 1414.3 | 1421.1 | 6.8 | Reka Core Pro |
Price analysis
On a blended 3:1 input-to-output basis, ERNIE 4.5 Pro costs about $26.71 per million tokens and Reka Core Pro costs about $27.42. ERNIE 4.5 Pro is roughly 3% cheaper than Reka Core Pro. At high volume, that gap compounds quickly, so price should carry real weight unless the quality difference is decisive.
ERNIE 4.5 Pro has the larger context window at 1,000,000 tokens, compared with 65,536 for Reka Core Pro. That matters for long documents, large codebases and multi-step agent traces.
Verdict
Across 12 shared benchmarks, ERNIE 4.5 Pro wins 6, Reka Core Pro wins 5, and 1 are tied. On the index average, ERNIE 4.5 Pro leads Reka Core Pro by 0.6 points (80.5 versus 79.9).
The price picture favours ERNIE 4.5 Pro. The context picture favours ERNIE 4.5 Pro. Those two dimensions often matter more than a few benchmark points once a model is good enough for the task.
If you need a single default, start with ERNIE 4.5 Pro for quality-sensitive work, and check whether its price holds at your expected volume before committing.
Choose ERNIE 4.5 Pro if
- You want the higher average benchmark score in this index.
- Unit cost matters and you want the cheaper blended price.
- You need the larger 1,000,000-token context window.
Choose Reka Core Pro if
- You need the larger 65,536-token output limit.
FAQ
Is ERNIE 4.5 Pro better than Reka Core Pro?
On the index average, ERNIE 4.5 Pro leads Reka Core Pro by 0.6 points (80.5 versus 79.9). The better choice depends on price, context and your task. ERNIE 4.5 Pro wins 6 benchmarks, Reka Core Pro wins 5.
Which is cheaper, ERNIE 4.5 Pro or Reka Core Pro?
ERNIE 4.5 Pro is cheaper on a blended 3:1 basis at about $26.71 per million tokens, versus $27.42 for Reka Core Pro.
Which has the larger context window?
ERNIE 4.5 Pro has the larger context window at 1,000,000 tokens. Reka Core Pro has 65,536 tokens.
Are these models open weights?
ERNIE 4.5 Pro is proprietary; Reka Core Pro is proprietary.
Which should I choose for production?
If you need a single default, start with ERNIE 4.5 Pro for quality-sensitive work, and check whether its price holds at your expected volume before committing.