Molmo2 8B (Free)

molmo-2-8b:free

Molmo2-8B is an open vision-language model from AI2 that supports image, video, and multi-image understanding. Built on Qwen3-8B with a SigLIP 2 vision backbone, it excels at short-video tasks like counting and captioning while remaining competitive on long-video understanding, outperforming other open-weight, open-data models in its class.

Context: 128K tokens
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Pricing

Input$0 / 1M

Output$0 / 1M

Cache Write$0 / 1M

Cache Read$0 / 1M

Prompt cache writes and reads are included at no additional cost.

Quick Start

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Endpoint

python

from openai import OpenAI client = OpenAI(    api_key="YOUR_API_KEY",    base_url="https://api.apertis.ai/v1") response = client.chat.completions.create(    model="molmo-2-8b:free",    messages=[        {"role": "user", "content": "Hello!"}    ],    max_tokens=1024,    temperature=0.7) print(response.choices[0].message.content) # Optional: Enable context compression to reduce token usage# response = client.chat.completions.create(#     model="molmo-2-8b:free",#     messages=[{"role": "user", "content": "Hello!"}],#     extra_body={"compression": {"enabled": True, "model": "gpt-4.1-mini"}}# )

Supported Parameters

API docs

Common7 params

modelmessagesmax_tokenstemperaturetop_pstreamtools

Extended4 params

reasoning_effortstream_optionsthinkingextra_body

Cursor IDE Model IDs

Use these namespaced identifiers in Cursor IDE to avoid conflicts with built-in models.

molmo-2-8b:free

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