Muse Spark 1.3 Now Available on Vercel AI Gateway With Contributor Pricing Tier
What shipped
Meta's Muse Spark 1.3 is now available on Vercel AI Gateway in both standard and contributor pricing tiers. The model ID is meta/muse-spark-1.3. It also landed on OpenRouter simultaneously.
What changed
Muse Spark 1.3 carries a 1M token context window and supports text, image, and PDF input. Vercel reports improvements over prior Muse Spark models in agent work and coding, with fewer turns and less filler. Pricing is unchanged from Muse Spark 1.2:
- Standard tier: $1.25/M input tokens, $4.25/M output tokens
- Contributor tier: $0.10/M input tokens, $0.20/M output tokens — 12.5x cheaper
The contributor tier is a separate model (meta/muse-spark-1.3-contributor) on both Vercel and OpenRouter — same architecture, lower price point for non-critical workloads, experimentation, and cost-sensitive pipelines.
Why a builder cares
The contributor tier opens up Muse Spark 1.3 for high-volume agentic loops and batch processing at a fraction of the standard cost. A million tokens of input runs $0.10 instead of $1.25. For teams running agent pipelines that burn through millions of context tokens per day, that's the difference between feasible and prohibitive. Combined with Vercel AI Gateway's built-in fallbacks and spend tracking, it's a straightforward drop-in for existing meta/muse-spark-1.2 users — no migration cost.