ERNIE 4.5 Reasoning vs Gemini 2.5 Pro Vision: which model should you choose?
We compared ERNIE 4.5 Reasoning and Gemini 2.5 Pro Vision on price, context window and 12 benchmarks. Gemini 2.5 Pro Vision has the stronger average benchmark score; Gemini 2.5 Pro Vision is cheaper on a blended 3:1 basis.
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
Gemini 2.5 Pro Vision
Gemini 2.5 Pro Vision is a multimodal model from Google DeepMind. It offers a 200,000-token context window, costs $14.91 per million input tokens and $71.00 per million output tokens, and averages 82.0 across the index's benchmark suite.
- Input
- $14.91 / 1M
- Output
- $71.00 / 1M
- Context
- 200,000
- Avg score
- 82.0
- Open weights
- No
Specification comparison
| Spec | ERNIE 4.5 Reasoning | Gemini 2.5 Pro Vision | Edge |
|---|---|---|---|
| Input price / 1M | $14.36 | $14.91 | A |
| Output price / 1M | $78.75 | $71.00 | B |
| Context window | 1,000,000 | 200,000 | A |
| Max output | 8,192 | 4,096 | A |
| Average score | 79.8 | 82.0 | B |
| Arena Elo | 1421.5 | 1451.3 | B |
| Open weights | No | No | Tie |
Benchmark comparison
ERNIE 4.5 Reasoning wins 0, Gemini 2.5 Pro Vision wins 12, and 0 benchmarks are tied. The table shows the modelled score for each model and the gap.
| Benchmark | ERNIE 4.5 Reasoning | Gemini 2.5 Pro Vision | Gap | Winner |
|---|---|---|---|---|
| MMLU-Pro | 80.6 | 83.9 | 3.3 | Gemini 2.5 Pro Vision |
| GPQA Diamond | 75.7 | 78.0 | 2.3 | Gemini 2.5 Pro Vision |
| SWE-bench Verified | 69.8 | 72.4 | 2.6 | Gemini 2.5 Pro Vision |
| HumanEval | 85.0 | 85.8 | 0.8 | Gemini 2.5 Pro Vision |
| MATH-500 | 82.5 | 82.9 | 0.4 | Gemini 2.5 Pro Vision |
| AIME 2025 | 78.1 | 80.0 | 1.9 | Gemini 2.5 Pro Vision |
| LiveCodeBench | 71.9 | 76.0 | 4.1 | Gemini 2.5 Pro Vision |
| IFEval | 88.7 | 90.2 | 1.5 | Gemini 2.5 Pro Vision |
| TruthfulQA | 82.9 | 84.1 | 1.2 | Gemini 2.5 Pro Vision |
| HellaSwag | 88.0 | 90.8 | 2.8 | Gemini 2.5 Pro Vision |
| MMMU | 74.4 | 78.2 | 3.8 | Gemini 2.5 Pro Vision |
| Arena Elo | 1421.5 | 1451.3 | 29.8 | Gemini 2.5 Pro Vision |
Price analysis
On a blended 3:1 input-to-output basis, ERNIE 4.5 Reasoning costs about $30.46 per million tokens and Gemini 2.5 Pro Vision costs about $28.93. Gemini 2.5 Pro Vision is roughly 5% 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 200,000 for Gemini 2.5 Pro Vision. That matters for long documents, large codebases and multi-step agent traces.
Verdict
Across 12 shared benchmarks, ERNIE 4.5 Reasoning wins 0, Gemini 2.5 Pro Vision wins 12, and 0 are tied. On the index average, Gemini 2.5 Pro Vision leads ERNIE 4.5 Reasoning by 2.2 points (82.0 versus 79.8).
The price picture favours Gemini 2.5 Pro Vision. 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 Gemini 2.5 Pro Vision for quality-sensitive work, and check whether its price holds at your expected volume before committing.
Choose ERNIE 4.5 Reasoning if
- You need the larger 1,000,000-token context window.
- You need the larger 8,192-token output limit.
- The workload needs multi-step reasoning.
Choose Gemini 2.5 Pro Vision if
- You want the higher average benchmark score in this index.
- Unit cost matters and you want the cheaper blended price.
FAQ
Is ERNIE 4.5 Reasoning better than Gemini 2.5 Pro Vision?
On the index average, Gemini 2.5 Pro Vision leads ERNIE 4.5 Reasoning by 2.2 points (82.0 versus 79.8). The better choice depends on price, context and your task. ERNIE 4.5 Reasoning wins 0 benchmarks, Gemini 2.5 Pro Vision wins 12.
Which is cheaper, ERNIE 4.5 Reasoning or Gemini 2.5 Pro Vision?
Gemini 2.5 Pro Vision is cheaper on a blended 3:1 basis at about $28.93 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. Gemini 2.5 Pro Vision has 200,000 tokens.
Are these models open weights?
ERNIE 4.5 Reasoning is proprietary; Gemini 2.5 Pro Vision is proprietary.
Which should I choose for production?
If you need a single default, start with Gemini 2.5 Pro Vision for quality-sensitive work, and check whether its price holds at your expected volume before committing.