Claude 3.7 Sonnet Vision vs ERNIE 4.5 Pro: which model should you choose?
We compared Claude 3.7 Sonnet Vision and ERNIE 4.5 Pro on price, context window and 12 benchmarks. Claude 3.7 Sonnet Vision has the stronger average benchmark score; Claude 3.7 Sonnet Vision is cheaper on a blended 3:1 basis.
Claude 3.7 Sonnet Vision
Claude 3.7 Sonnet Vision is a multimodal model from Anthropic. It offers a 400,000-token context window, costs $13.96 per million input tokens and $56.28 per million output tokens, and averages 81.0 across the index's benchmark suite.
- Input
- $13.96 / 1M
- Output
- $56.28 / 1M
- Context
- 400,000
- Avg score
- 81.0
- Open weights
- No
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
Specification comparison
| Spec | Claude 3.7 Sonnet Vision | ERNIE 4.5 Pro | Edge |
|---|---|---|---|
| Input price / 1M | $13.96 | $13.89 | B |
| Output price / 1M | $56.28 | $65.19 | A |
| Context window | 400,000 | 1,000,000 | B |
| Max output | 8,192 | 32,768 | B |
| Average score | 81.0 | 80.5 | A |
| Arena Elo | 1429.6 | 1414.3 | A |
| Open weights | No | No | Tie |
Benchmark comparison
Claude 3.7 Sonnet Vision wins 6, ERNIE 4.5 Pro wins 6, and 0 benchmarks are tied. The table shows the modelled score for each model and the gap.
| Benchmark | Claude 3.7 Sonnet Vision | ERNIE 4.5 Pro | Gap | Winner |
|---|---|---|---|---|
| MMLU-Pro | 82.5 | 80.3 | 2.2 | Claude 3.7 Sonnet Vision |
| GPQA Diamond | 77.3 | 74.7 | 2.6 | Claude 3.7 Sonnet Vision |
| SWE-bench Verified | 72.2 | 66.5 | 5.7 | Claude 3.7 Sonnet Vision |
| HumanEval | 85.4 | 86.9 | 1.5 | ERNIE 4.5 Pro |
| MATH-500 | 84.8 | 87.2 | 2.4 | ERNIE 4.5 Pro |
| AIME 2025 | 80.9 | 76.3 | 4.6 | Claude 3.7 Sonnet Vision |
| LiveCodeBench | 75.7 | 76.4 | 0.7 | ERNIE 4.5 Pro |
| IFEval | 87.9 | 86.0 | 1.9 | Claude 3.7 Sonnet Vision |
| TruthfulQA | 81.6 | 83.1 | 1.5 | ERNIE 4.5 Pro |
| HellaSwag | 89.4 | 90.2 | 0.8 | ERNIE 4.5 Pro |
| MMMU | 73.8 | 78.4 | 4.6 | ERNIE 4.5 Pro |
| Arena Elo | 1429.6 | 1414.3 | 15.3 | Claude 3.7 Sonnet Vision |
Price analysis
On a blended 3:1 input-to-output basis, Claude 3.7 Sonnet Vision costs about $24.54 per million tokens and ERNIE 4.5 Pro costs about $26.71. Claude 3.7 Sonnet Vision is roughly 8% cheaper than ERNIE 4.5 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 400,000 for Claude 3.7 Sonnet Vision. That matters for long documents, large codebases and multi-step agent traces.
Verdict
Across 12 shared benchmarks, Claude 3.7 Sonnet Vision wins 6, ERNIE 4.5 Pro wins 6, and 0 are tied. On the index average, Claude 3.7 Sonnet Vision leads ERNIE 4.5 Pro by 0.5 points (81.0 versus 80.5).
The price picture favours Claude 3.7 Sonnet Vision. 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 Claude 3.7 Sonnet Vision for quality-sensitive work, and check whether its price holds at your expected volume before committing.
Choose Claude 3.7 Sonnet Vision 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 Pro if
- You need the larger 1,000,000-token context window.
- You need the larger 32,768-token output limit.
FAQ
Is Claude 3.7 Sonnet Vision better than ERNIE 4.5 Pro?
On the index average, Claude 3.7 Sonnet Vision leads ERNIE 4.5 Pro by 0.5 points (81.0 versus 80.5). The better choice depends on price, context and your task. Claude 3.7 Sonnet Vision wins 6 benchmarks, ERNIE 4.5 Pro wins 6.
Which is cheaper, Claude 3.7 Sonnet Vision or ERNIE 4.5 Pro?
Claude 3.7 Sonnet Vision is cheaper on a blended 3:1 basis at about $24.54 per million tokens, versus $26.71 for ERNIE 4.5 Pro.
Which has the larger context window?
ERNIE 4.5 Pro has the larger context window at 1,000,000 tokens. Claude 3.7 Sonnet Vision has 400,000 tokens.
Are these models open weights?
Claude 3.7 Sonnet Vision is proprietary; ERNIE 4.5 Pro is proprietary.
Which should I choose for production?
If you need a single default, start with Claude 3.7 Sonnet Vision for quality-sensitive work, and check whether its price holds at your expected volume before committing.