Baidu: ERNIE 4.5 VL 424B A47B✓ Catalog verified
ERNIE-4.5-VL-424B-A47B is a multimodal Mixture-of-Experts (MoE) model from Baidu’s ERNIE 4.5 series, featuring 424B total parameters with 47B active per token. It is trained jointly on text and image data using a heterogeneous MoE architecture and modality-isolated routing to enable high-fidelity cross-modal reasoning, image understanding, and long-context generation (up to 131k tokens). Fine-tuned with techniques like SFT, DPO, UPO, and RLVR, this model supports both “thinking” and non-thinking inference modes. Designed for vision-language tasks in English and Chinese, it is optimized for efficient scaling and can operate under 4-bit/8-bit quantization.
Overview
ERNIE-4.5-VL-424B-A47B is a multimodal Mixture-of-Experts (MoE) model from Baidu’s ERNIE 4.5 series, featuring 424B total parameters with 47B active per token. It is trained jointly on text and image data using a heterogeneous MoE architecture and modality-isolated routing to enable high-fidelity cross-modal reasoning, image understanding, and long-context generation (up to 131k tokens). Fine-tuned with techniques like SFT, DPO, UPO, and RLVR, this model supports both “thinking” and non-thinking inference modes. Designed for vision-language tasks in English and Chinese, it is optimized for efficient scaling and can operate under 4-bit/8-bit quantization.
Access: available through the official Baidu API. Context window: 123K.
Specifications
| API identifier | baidu/ernie-4.5-vl-424b-a47b |
| Provider | Baidu |
| Model type | Multimodal LLM |
| Context window | 123K catalog |
| Input modalities | image · text |
| Output modalities | text |
| Released | Jun 30, 2025 |
| Moderated | No |
| Architecture modality | text+image->text |
Pricing
Live pricing components for baidu/ernie-4.5-vl-424b-a47b as published in the catalog.
| Pricing component | Raw unit price | Normalized | Unit |
|---|---|---|---|
| Prompt tokens | $4.2e-7 | $0.42 / 1M | Per input token |
| Completion tokens | $0.00000125 | $1.25 / 1M | Per output token |
| Request fee | N/A | N/A | Per request |
| Image fee | N/A | N/A | Per image unit |
| Web search fee | N/A | N/A | Per search request |
Cost calculator
Estimate monthly spend from your own token volumes.
Estimated Total Cost
$0.46Calculated from current list pricing in the ModelsAtlas catalog.Capabilities
| Capability | Status | What it means |
|---|---|---|
| Visual Understanding | ✓ Supported | Image and document analysis support |
| Audio Processing | Not advertised | Speech and voice aligned flows |
| Tool Calling | Not advertised | Supports tools / function calling |
| Self-Hosting | Not advertised | Deploy outside managed APIs |
Capability signals
Directional signals derived from model metadata and capability tags — not official benchmark submissions.
Quick start
Call Baidu: ERNIE 4.5 VL 424B A47B through an OpenAI-compatible client.
from openai import OpenAI
client = OpenAI(
base_url="https://openrouter.ai/api/v1",
api_key="YOUR_API_KEY"
)
response = client.chat.completions.create(
model="baidu/ernie-4.5-vl-424b-a47b",
messages=[{"role": "user", "content": "Explain quantum physics."}]
)
print(response.choices[0].message.content)Alternatives
Closest models by context window from a different provider.
| Model | Provider | Context | Input /1M | Actions |
|---|---|---|---|---|
| Perplexity: Sonar | Perplexity | 127K | $1.00 | View → |
| AllenAI: Olmo 2 32B Instruct | Allenai | 128K | $0.05 | View → |
Sources & attribution
Pricing and metadata are maintained in the ModelsAtlas catalog.
Frequently asked questions
How much does Baidu: ERNIE 4.5 VL 424B A47B cost?
$0.42 per 1M input tokens and $1.25 per 1M output tokens on the official Baidu API.
What is the context window of Baidu: ERNIE 4.5 VL 424B A47B?
Baidu: ERNIE 4.5 VL 424B A47B supports up to 123K tokens of context.
Does Baidu: ERNIE 4.5 VL 424B A47B support tool / function calling?
Baidu: ERNIE 4.5 VL 424B A47B does not advertise first-class tool/function calling. Check vendor docs for the latest capabilities.
How do I access Baidu: ERNIE 4.5 VL 424B A47B?
Use the official Baidu API with the model id `baidu/ernie-4.5-vl-424b-a47b`. See the Quick start section above for code examples.