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Balanced — strong quality at a mid priceOpen Weights
Muse Spark Open Pricing
Meta · meta-muse-spark-open
Input / 1M tokens
$1.25
Output / 1M tokens
$4.25
Context window
1,048,576 tokens
≈ 1,398 pages of text
Max output
943,718 tokens
What it costs in practice
Typical request (1,200 in + 400 out tokens)$0.0032
1,000 requests / month$3.20/mo10,000 requests / month$32.00/mo100,000 requests / month$320.00/moEstimate your own workloadOpens the calculator with Muse Spark Open preloaded — adjust volume and token counts there.
Price history
Only one price point recorded so far.
The staircase chart appears once a price change is detected.
What it excels at
Supports 1M-token context with native text, vision, and audio inputs. Suitable for long-document multimodal analysis and generation tasks.
The business tradeoff
Open-weights release introduces hosting variance and infrastructure overhead. Output token pricing is elevated relative to input.
Cheaper from Meta
Head-to-head
Vendor list rates, as of Oct 15, 2026 · source: openrouter · per-request examples assume 1,200 input + 400 output tokens.