Muse Spark 1.1 vs Grok 4.5
Side-by-side comparison of API pricing, specs, benchmarks, and capabilities
Muse Spark 1.1 is 33.3% cheaper on blended cost ($2.00 vs $3.00/Mtok)
| Specification |
Muse Spark 1.1Intro price
by Meta
|
by xAI
|
|---|---|---|
| Overview | ||
| Status | Current flagship | Current flagship |
| Released | Jul 9, 2026 | Jul 8, 2026 |
| Pricing per million tokens | ||
| Input | $1.25/Mtok | $2.00/Mtok |
| Output | $4.25/Mtok | $6.00/Mtok |
| Blended avg | $2.00/Mtok | $3.00/Mtok |
| Cached input | $0.150/Mtok | — |
| Specifications | ||
| Context window | 1M tokens | 500K tokens |
| Parameters | Proprietary | Proprietary |
| Speed (TPS) | — | — |
| Modalities | ||
| Input |
textimagevideoaudio
|
textimage
|
| Benchmarks sources: Artificial Analysis / Artificial Analysis, LMSYS Chatbot Arena (UC Berkeley), xAI Grok 4.5 launch post | ||
| Independent composite scores measured for both models — each on its own scale | ||
| AA Intelligence Index | 50.6 | 53.8 |
| AA Agentic Index | 37.5 | 45.7 |
| AA-Omniscience Index (−100–100) | 18 | 26.4 |
| GDPval-AA v2 | 1375.1 ELO | 1527.9 ELO |
| LMSYS Chatbot Arena | 1489.7 ELO | 1468.8 ELO |
| Per-benchmark results published for Grok 4.5 only — no independent per-benchmark scores exist for Muse Spark 1.1 yet | ||
| Terminal-Bench 2.1 | — | 83.3 vendor |
| Providers | ||
| Available from |
Meta — $1.25/$4.25/Mtok
|
xAI — $2.00/$6.00/Mtok
|
Cost at scale
1M tokens · 50/50 input/output| Volume | Muse Spark 1.1 | Grok 4.5 | Savings |
|---|---|---|---|
| 1M tokens | $2 | $3 | $1 (33.3%) |
| 10M tokens | $20 | $30 | $10 (33.3%) |
| 100M tokens | $200 | $300 | $100 (33.3%) |
| 1000M tokens | $2000 | $3000 | $1000 (33.3%) |
When to pick which
distilled from the pricing and spec data above
Pick Muse Spark 1.1 if…
- cost dominates: $2.00/Mtok blended vs $3.00 — 33.3% less on the same 50/50 token mix
- your workload re-reads context (agents, RAG, long chats): cached input costs $0.150/Mtok — 88% off its list input price, a discount Grok 4.5 doesn't offer
- you need the longer context: 1M tokens vs 500K (2.1×)
Pick Grok 4.5 if…
- this pairing gives Grok 4.5 no edge on price, context, cache discount, or measured performance — pick it only for qualitative fit (ecosystem, compliance, model behavior on your prompts)
Summary
Muse Spark 1.1 by Meta costs $1.25/Mtok input and $4.25/Mtok output, with a 1M-token context window. It supports text, image, video, audio input.
Grok 4.5 by xAI costs $2.00/Mtok input and $6.00/Mtok output, with a 500K-token context window. It supports text, image input.
On a blended cost basis, Muse Spark 1.1 is 33.3% cheaper than Grok 4.5.It also has a larger context window.
Note: Pricing is per million tokens. Actual costs vary with usage patterns, prompt caching, and batch discounts. Always verify against official provider pricing pages.
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