Moondream lists 2 models and X Ai 18. Moondream is cheaper on a typical model ($0.85 per 1M tokens median). Below: line-up, price tiers, the cheapest model for each capability, and what each costs for five real workloads.
| Moondream | X Ai | |
|---|---|---|
| Models listed | 2 | 18 |
| Models with published pricing | 2 | 18 |
| Typical price (median, 3:1 blend per 1M) | $0.85 | $1.56 |
| Cheapest paid model | Moondream: Moondream 3 Preview ($0.85) | xAI: Grok 4 Fast ($0.28) |
| Longest context | Moondream: Moondream 3 Preview (32K) | SpaceXAI: Grok 4.20 (2M) |
| Free models | 0 | 0 |
| Newest model | Moondream: Moondream 3 Preview (2026-10-15) | SpaceXAI: Grok 4.7 (2026-09-21) |
| Price changes in the last 90 days | 0 | 1 |
For each workload: the cheapest model from each provider that can actually do it (fits the context window; tool calling required for the agent), and its monthly cost at list price.
| Workload (per month) | Moondream | X Ai |
|---|---|---|
| Customer-support chatbot 50,000 conversations — each a 6-turn conversation | $72.50 with Moondream: Moondream 3 Preview | $25.00 with xAI: Grok 4 Fast |
| RAG search over documents 20,000 questions — each a question answered from ~8 retrieved passages | $61.00 with Moondream: Moondream 3 Preview | $29.00 with xAI: Grok 4 Fast |
| Coding / tool-using agent 2,000 tasks — each a multi-step task with tool calls and file context | no suitable model | $30.00 with xAI: Grok 4 Fast |
| Batch summarisation 10,000 documents — each a 6,000-word report summarised to a page | $39.00 with Moondream: Moondream 3 Preview | $19.00 with xAI: Grok 4 Fast |
| Long-document analysis 500 documents — each a 150-page contract or codebase read in one pass | no suitable model | $10.50 with xAI: Grok 4 Fast |
| You need | Moondream | X Ai |
|---|---|---|
| Any model | Moondream: Moondream 3 Preview ($0.85) | xAI: Grok 4 Fast ($0.28) |
| With tool calling | none listed | xAI: Grok 4 Fast ($0.28) |
| With image input | Moondream: Moondream 3 Preview ($0.85) | xAI: Grok 4 Fast ($0.28) |
| With reasoning mode | Moondream: Moondream 3 Preview ($0.85) | xAI: Grok 4 Fast ($0.28) |
| 128K+ context | none listed | xAI: Grok 4 Fast ($0.28) |
| 1M+ context | none listed | xAI: Grok 4 Fast ($0.28) |
| Model type | Moondream | X Ai |
|---|---|---|
| text+image+file->text | 0 | 8 |
| text+image->text | 2 | 5 |
| text->text | 0 | 5 |
| Price per 1M (3:1 blend) | Moondream | X Ai |
|---|---|---|
| Free | 0 | 0 |
| Under $0.50 | 0 | 4 |
| $0.50 – $3 | 2 | 6 |
| $3 – $10 | 0 | 8 |
| $10 and up | 0 | 0 |
Moondream is cheaper on a typical model: a median of $0.85 per 1M tokens (3:1 input/output) against $1.56 for X Ai. The cheapest paid models are Moondream: Moondream 3 Preview at $0.85 and xAI: Grok 4 Fast at $0.28.
It depends on the job: X Ai offers the broader line-up (2 models vs 18), Moondream the lower typical price, X Ai the longest context (2M tokens). The workload table above shows which wins for chat, RAG, agents, batch jobs and long documents.
X Ai: Moondream lists 2 models and X Ai lists 18.
X Ai: Moondream's longest is Moondream: Moondream 3 Preview at 32K tokens; X Ai's is SpaceXAI: Grok 4.20 at 2M.
Neither lists a free model; both are pay-per-token.
Moondream: 2 of 2 models accept images. X Ai: 13 of 18.