Baidu: ERNIE 4.5 VL 28B A3B✓ Catalog verified
A powerful multimodal Mixture-of-Experts chat model featuring 28B total parameters with 3B activated per token, delivering exceptional text and vision understanding through its innovative heterogeneous MoE structure with modality-isolated routing. Built with scaling-efficient infrastructure for high-throughput training and inference, the model leverages advanced post-training techniques including SFT, DPO, and UPO for optimized performance, while supporting an impressive 131K context length and RLVR alignment for superior cross-modal reasoning and generation capabilities.
Overview
A powerful multimodal Mixture-of-Experts chat model featuring 28B total parameters with 3B activated per token, delivering exceptional text and vision understanding through its innovative heterogeneous MoE structure with modality-isolated routing. Built with scaling-efficient infrastructure for high-throughput training and inference, the model leverages advanced post-training techniques including SFT, DPO, and UPO for optimized performance, while supporting an impressive 131K context length and RLVR alignment for superior cross-modal reasoning and generation capabilities.
Access: available through the official Baidu API. Context window: 30K.
Specifications
| API identifier | baidu/ernie-4.5-vl-28b-a3b |
| Provider | Baidu |
| Model type | Multimodal LLM |
| Context window | 30K catalog |
| Input modalities | text · image |
| Output modalities | text |
| Released | Aug 12, 2025 |
| Moderated | No |
| Architecture modality | text+image->text |
Pricing
Live pricing components for baidu/ernie-4.5-vl-28b-a3b as published in the catalog.
| Pricing component | Raw unit price | Normalized | Unit |
|---|---|---|---|
| Prompt tokens | $1.4e-7 | $0.14 / 1M | Per input token |
| Completion tokens | $5.6e-7 | $0.56 / 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
$0.18Calculated 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 | ✓ Supported | 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 28B A3B 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-28b-a3b",
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 |
|---|---|---|---|---|
| Mistral: Voxtral Small 24B 2507 | Mistral AI | 32K | $0.10 | View → |
| AionLabs: Aion-RP 1.0 (8B) | Aion Labs | 33K | $0.80 | View → |
Sources & attribution
Pricing and metadata are maintained in the ModelsAtlas catalog.
Frequently asked questions
How much does Baidu: ERNIE 4.5 VL 28B A3B cost?
$0.14 per 1M input tokens and $0.56 per 1M output tokens on the official Baidu API.
What is the context window of Baidu: ERNIE 4.5 VL 28B A3B?
Baidu: ERNIE 4.5 VL 28B A3B supports up to 30K tokens of context.
Does Baidu: ERNIE 4.5 VL 28B A3B support tool / function calling?
Yes, Baidu: ERNIE 4.5 VL 28B A3B supports tool / function calling — you can register tools and the model will emit structured tool calls.
How do I access Baidu: ERNIE 4.5 VL 28B A3B?
Use the official Baidu API with the model id `baidu/ernie-4.5-vl-28b-a3b`. See the Quick start section above for code examples.