MolmoAct2 Think vs Grok 4.20 Multi Agent
At a Glance
| Compare | ||
|---|---|---|
| Intelligence, Cost, and Efficiency | ||
| IntelligenceHigher is better · MM Intelligence v2.5 | UnrankedNot in the 46-model eligible cohort | #22 of 4663.4 score · 2/3 sources · provisional · missing LiveBench · full-core range 42.3–75.6 |
| Pricing and Limits | ||
| Input priceFrom · USD / 1M tokens | Not reported | $1.25Xai ↗ · Sep 3, 2026 |
| Output priceFrom · USD / 1M tokens | Not reported | $2.50Xai ↗ · Sep 3, 2026 |
| Context windowMaximum documented tokens | 16K | 1,000K |
| Model facts checked | Aug 28, 2026View model evidence → | Aug 29, 2026View model evidence → |
Token prices are the lowest available sourced USD rates; input and output may use different providers. Cost ranking estimates output spend on LiveBench, not a full request bill. Ranking methodology →
Available Benchmarks
Side-by-Side Facts
| Field | MolmoAct2-Think | Grok 4.20 Multi-Agent |
|---|---|---|
| Developer | Ai2 | xAI |
| Family | Molmoact2 Think | Grok 4 20 |
| Model | MolmoAct2-Think | Grok 4.20 Multi-Agent |
| Version | MolmoAct2-Think | Grok 4.20 Multi-Agent |
| Lifecycle | active | preview |
| Released | Unknown | Unknown |
| Knowledge cutoff | Unknown | Unknown |
| Input modalities | Model-specific input | Text, Image |
| Output modalities | Model-specific input | Text |
| Context window | 16K | 1,000K |
| Total parameters | 5.4B | Unknown |
| Active parameters | Unknown | Unknown |
| License | Unknown | Unknown |
| Open weights | Yes | No |
| API available | Unknown | Yes |
| Self-hostable | Yes | No |
| Provider access | Unknown | Xai (Standard) |
| Capabilities | reasoning, robot_action_generation | generation, reasoning, research, tools |
MolmoAct2 Think Capabilities
Grok 4.20 Multi Agent Capabilities
Related Comparisons
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| vs |  Gemini 3.1 ProGoogle DeepMind | cross-developer peerstext | |
| vs |  DeepSeek-V4.1-FlashDeepSeek | cross-developer peersimage, text | |
| vs | Grok 4.6xAI | cross-developer peersimage, text | |
| vs |  Qwen3.8-MaxQwen | cross-developer peersimage, text | |
| vs |  Kimi-K3Moonshot AI | cross-developer peersimage, text | |
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| vs |  GLM-5.3Z.ai | cross-developer peerstext | |
| vs |  Hy4 previewTencent | cross-developer peerstext | |
| vs | Seed 2.1 ProByteDance Seed | cross-developer peersimage, text | |
| vs |  Mistral Large 3Mistral AI | cross-developer peersimage, text |
Primary Evidence
Sources and Freshness
Questions
MolmoAct2 Think vs Grok 4.20 Multi Agent FAQs
Is MolmoAct2 Think or Grok 4.20 Multi Agent better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both MolmoAct2 Think and Grok 4.20 Multi Agent, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, MolmoAct2 Think or Grok 4.20 Multi Agent?+
Only Grok 4.20 Multi Agent has a directly sourced input price: $1.25 per million tokens. Only Grok 4.20 Multi Agent has a directly sourced output price: $2.50 per million tokens.
Which has a larger context window, MolmoAct2 Think or Grok 4.20 Multi Agent?+
Grok 4.20 Multi Agent has the larger sourced context window. MolmoAct2 Think supports 16K and Grok 4.20 Multi Agent supports 1,000K.
Which performs better in benchmarks, MolmoAct2 Think or Grok 4.20 Multi Agent?+
There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.
Can MolmoAct2 Think or Grok 4.20 Multi Agent be self-hosted?+
MolmoAct2 Think is the only model in this pair currently marked as self-hostable. MolmoAct2 Think is open weight; Grok 4.20 Multi Agent is not marked open weight.
Can MolmoAct2 Think and Grok 4.20 Multi Agent understand images?+
MolmoAct2 Think is not documented with image input; Grok 4.20 Multi Agent is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, MolmoAct2 Think or Grok 4.20 Multi Agent?+
Neither has a larger sourced maximum output. MolmoAct2 Think is — and Grok 4.20 Multi Agent is —.
Do MolmoAct2 Think and Grok 4.20 Multi Agent support reasoning and tool use?+
MolmoAct2 Think: reasoning. Grok 4.20 Multi Agent: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, MolmoAct2 Think or Grok 4.20 Multi Agent?+
MolmoAct2 Think has 0 sourced provider routes; Grok 4.20 Multi Agent has 1, so Grok 4.20 Multi Agent has broader tracked availability.
Which offers better value, MolmoAct2 Think or Grok 4.20 Multi Agent?+
There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.