AllenAI: Molmo2 8B (free)

by AllenAI

Molmo2-8B is an open vision-language model developed by the Allen Institute for AI (Ai2) as part of the Molmo2 family, supporting image, video, and multi-image understanding and grounding. It is based on Qwen3-8B and uses SigLIP 2 as its vision backbone, outperforming other open-weight, open-data models on short videos, counting, and captioning, while remaining competitive on long-video tasks.

Avg Score

28.8%

8 answers

Avg Latency

3.8s

4 runs

Pricing

Free

input

Free

output

per 1M tokens

Context

37K

tokens

Alternatives

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Other Models from AllenAI

Compare performance with other models from the same creator

Model	Score	Latency	Cost/1M
AllenAI: Olmo 3 32B Think	77.5%	82.2s	$0.32
AllenAI: Olmo 3.1 32B Think	56.3%	80.3s	$0.32
AllenAI: Olmo 3.1 32B Instruct	53.8%	23.8s	$0.40
AllenAI: Olmo 3 7B Instruct	48.8%	27.3s	$0.15
AllenAI: Olmo 3 7B Think	41.3%	32.6s	$0.16
AllenAI: Olmo 2 32B Instruct	—	—	$0.13

Benchmark Performance

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Score Over Time

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Benchmark Activity

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Quickstart

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View on OpenRouter

import { OpenRouter } from "@openrouter/sdk";

const openrouter = new OpenRouter({
  apiKey: "<OPENROUTER_API_KEY>"
});

const completion = await openrouter.chat.completions.create({
  model: "allenai/molmo-2-8b:free",
  messages: [
    {
      role: "user",
      content: "Hello!"
    }
  ]
});

console.log(completion.choices[0].message.content);

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