Large language models are no longer confined to text. The emergence of vision-language models, or VLMs, has turned frontier LLMs into general-purpose visual reasoning engines. These models accept images alongside text, enabling zero-shot classification, visual question answering, and document parsing without task-specific training. For developers building multimodal applications, Oxlo.ai provides fully OpenAI SDK-compatible access to open-source vision models, with request-based pricing that removes the cost uncertainty of long image-encoded prompts.
Vision-Language Models as General-Purpose CV Engines
Traditional computer vision pipelines usually require labeled datasets, fine-tuned CNNs or transformers, and separate model deployments for each task. VLMs change this by leveraging pre-trained language understanding to reason about visual content in natural language. A single model can describe a scene, answer questions about object relationships, extract structured data from a form, or generate code from a UI screenshot. This unification reduces infrastructure complexity and accelerates prototyping.
Vision Models Available on Oxlo.ai
Oxlo.ai hosts several vision-capable models that are accessible through the standard chat completions endpoint.
- Gemma 3 27B: A vision model capable of image understanding and cross-modal reasoning.
- Kimi VL A3B: A lightweight vision-language model designed for efficient image comprehension.
- Kimi K2.6: Offers advanced reasoning, agentic coding, and vision support with a 131K context window, making it suitable for analyzing high-resolution images or long video sequences.
For tasks that require explicit bounding boxes or segmentation rather than semantic description, Oxlo.ai also offers dedicated object detection endpoints with YOLOv9 and YOLOv11.
Sending Images to an LLM with the OpenAI SDK
Because Oxlo.ai is fully OpenAI SDK compatible, you can send image inputs using the same messages format you already use for text. The platform supports both image URLs and base64-encoded strings.
import os
import base64
from openai import OpenAI
client = OpenAI(
base_url="https://api.oxlo.ai/v1",
api_key=os.environ.get("OXLO_API_KEY")
)
def encode_image(path):
with open(path, "rb") as f:
return base64.b64encode(f.read()).decode("utf-8")
b64_image = encode_image("invoice.png")
response = client.chat.completions.create(
model=os.environ.get("OXLO_VISION_MODEL"), # e.g., Gemma 3 27B or Kimi VL A3B
messages=[
{
"role": "user",
"content": [
{
"type": "text",
"text": "Extract the total amount and due date from this invoice."
},
{
"type": "image_url",
"image_url": {"url": f"data:image/png;base64,{b64_image}"}
}
]
}
],
max_tokens=1024
)
print(response.choices[0].message.content)
This pattern works with local files, presigned S3 URLs, or on-the-fly screenshots from a browser automation stack.
