Doubao 1.5 Pro Pro vs ERNIE 4.5 Reasoning: which model should you choose?
We compared Doubao 1.5 Pro Pro and ERNIE 4.5 Reasoning on price, context window and 12 benchmarks. Doubao 1.5 Pro Pro has the stronger average benchmark score; Doubao 1.5 Pro Pro is cheaper on a blended 3:1 basis.
Doubao 1.5 Pro Pro
Doubao 1.5 Pro Pro is a multimodal model from ByteDance. It offers a 128,000-token context window, costs $14.10 per million input tokens and $54.74 per million output tokens, and averages 80.2 across the index's benchmark suite.
- Input
- $14.10 / 1M
- Output
- $54.74 / 1M
- Context
- 128,000
- Avg score
- 80.2
- Open weights
- No
ERNIE 4.5 Reasoning
ERNIE 4.5 Reasoning is a multimodal model from Baidu. It offers a 1,000,000-token context window, costs $14.36 per million input tokens and $78.75 per million output tokens, and averages 79.8 across the index's benchmark suite.
- Input
- $14.36 / 1M
- Output
- $78.75 / 1M
- Context
- 1,000,000
- Avg score
- 79.8
- Open weights
- No
Specification comparison
| Spec | Doubao 1.5 Pro Pro | ERNIE 4.5 Reasoning | Edge |
|---|---|---|---|
| Input price / 1M | $14.10 | $14.36 | A |
| Output price / 1M | $54.74 | $78.75 | A |
| Context window | 128,000 | 1,000,000 | B |
| Max output | 8,192 | 8,192 | Tie |
| Average score | 80.2 | 79.8 | A |
| Arena Elo | 1443.4 | 1421.5 | A |
| Open weights | No | No | Tie |
Benchmark comparison
Doubao 1.5 Pro Pro wins 5, ERNIE 4.5 Reasoning wins 7, and 0 benchmarks are tied. The table shows the modelled score for each model and the gap.
| Benchmark | Doubao 1.5 Pro Pro | ERNIE 4.5 Reasoning | Gap | Winner |
|---|---|---|---|---|
| MMLU-Pro | 80.2 | 80.6 | 0.4 | ERNIE 4.5 Reasoning |
| GPQA Diamond | 74.5 | 75.7 | 1.2 | ERNIE 4.5 Reasoning |
| SWE-bench Verified | 71.2 | 69.8 | 1.4 | Doubao 1.5 Pro Pro |
| HumanEval | 84.4 | 85.0 | 0.6 | ERNIE 4.5 Reasoning |
| MATH-500 | 85.4 | 82.5 | 2.9 | Doubao 1.5 Pro Pro |
| AIME 2025 | 77.7 | 78.1 | 0.4 | ERNIE 4.5 Reasoning |
| LiveCodeBench | 71.6 | 71.9 | 0.3 | ERNIE 4.5 Reasoning |
| IFEval | 87.8 | 88.7 | 0.9 | ERNIE 4.5 Reasoning |
| TruthfulQA | 84.6 | 82.9 | 1.7 | Doubao 1.5 Pro Pro |
| HellaSwag | 87.2 | 88.0 | 0.8 | ERNIE 4.5 Reasoning |
| MMMU | 78.1 | 74.4 | 3.7 | Doubao 1.5 Pro Pro |
| Arena Elo | 1443.4 | 1421.5 | 21.9 | Doubao 1.5 Pro Pro |
Price analysis
On a blended 3:1 input-to-output basis, Doubao 1.5 Pro Pro costs about $24.26 per million tokens and ERNIE 4.5 Reasoning costs about $30.46. Doubao 1.5 Pro Pro is roughly 20% cheaper than ERNIE 4.5 Reasoning. At high volume, that gap compounds quickly, so price should carry real weight unless the quality difference is decisive.
ERNIE 4.5 Reasoning has the larger context window at 1,000,000 tokens, compared with 128,000 for Doubao 1.5 Pro Pro. That matters for long documents, large codebases and multi-step agent traces.
Verdict
Across 12 shared benchmarks, Doubao 1.5 Pro Pro wins 5, ERNIE 4.5 Reasoning wins 7, and 0 are tied. On the index average, Doubao 1.5 Pro Pro leads ERNIE 4.5 Reasoning by 0.4 points (80.2 versus 79.8).
The price picture favours Doubao 1.5 Pro Pro. The context picture favours ERNIE 4.5 Reasoning. 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 Doubao 1.5 Pro Pro for quality-sensitive work, and check whether its price holds at your expected volume before committing.
Choose Doubao 1.5 Pro Pro if
- You want the higher average benchmark score in this index.
- Unit cost matters and you want the cheaper blended price.
Choose ERNIE 4.5 Reasoning if
- You need the larger 1,000,000-token context window.
- The workload needs multi-step reasoning.
FAQ
Is Doubao 1.5 Pro Pro better than ERNIE 4.5 Reasoning?
On the index average, Doubao 1.5 Pro Pro leads ERNIE 4.5 Reasoning by 0.4 points (80.2 versus 79.8). The better choice depends on price, context and your task. Doubao 1.5 Pro Pro wins 5 benchmarks, ERNIE 4.5 Reasoning wins 7.
Which is cheaper, Doubao 1.5 Pro Pro or ERNIE 4.5 Reasoning?
Doubao 1.5 Pro Pro is cheaper on a blended 3:1 basis at about $24.26 per million tokens, versus $30.46 for ERNIE 4.5 Reasoning.
Which has the larger context window?
ERNIE 4.5 Reasoning has the larger context window at 1,000,000 tokens. Doubao 1.5 Pro Pro has 128,000 tokens.
Are these models open weights?
Doubao 1.5 Pro Pro is proprietary; ERNIE 4.5 Reasoning is proprietary.
Which should I choose for production?
If you need a single default, start with Doubao 1.5 Pro Pro for quality-sensitive work, and check whether its price holds at your expected volume before committing.