--- title: "Meta: Muse Spark 1.3 — price, capability and what beats it · Undominated.ai" canonical: https://undominated.ai/models/meta__muse-spark-1.3/ description: "Meta: Muse Spark 1.3: $1.25/M in, $4.25/M out. Independent capability scores, and the models that are both better and cheaper." --- # Meta: Muse Spark 1.3 — price, capability and what beats it · Undominated.ai > Meta: Muse Spark 1.3: $1.25/M in, $4.25/M out. Independent capability scores, and the models that are both better and cheaper. MODEL PROOF # Muse Spark 1.3 Meta · 02 Sept 2026 Balanced Summarise Chat Code gen Agentic TRADE-OFF ## A stored alternative scores higher and costs less, with capability losses. **$2.00** / 1M tokens Balanced · 3 tokens in per 1 out Gemini 3.8 Flash · 5 points higher independent score · 25% lower measured price - 944K → 66K max output Independent LMArena score 1,489.7 ± 8.83 · 4,723 votes Context window 1.05M Maximum output 943.72K Input modalities text, image, video, file, audio Output modalities text Published input price $1.25 / 1M tokens Published output price $4.25 / 1M tokens Pricing kind fixed Evidence as of 19 Sept 2026 openrouter/models LMArena · cc-by-4.0 Copy link Share Download landscape card MODEL MONUMENT ## Save or share this proof Meta: Muse Spark 1.3. Balanced workload. Alternative has a trade-off. Evidence as of 19 Sept 2026. Download landscape card — 1200 by 630 pixels Download square card — 1080 by 1080 pixels Copy landscape image Share landscape card $1.25/M in, $4.25/M out in this catalogue, as of the fetch date on this page. That is the API row, not a subscription. Gemini 3.8 Flash scores higher and costs less — but you would give something up. ### Every price dimension | Input | $1.25 /M | | --- | --- | | Output | $4.25 /M | | Cached input | $0.150 /M | | Web search | $0.0025 /call | ### Who sells it The same weights, different shops. Cheapest is not like-for-like when serving precision differs. | Seller | Input | Output | Precision | Uptime (1d) | | --- | --- | --- | --- | --- | | Seller Meta | Input $1.25 | Output $4.25 | Precision undeclared | Uptime (1d) 100.00% | ### Independent scores | LMArena Elo | 1489.7 max | | --- | --- | LMArena Elo under CC BY 4.0. Absence of another board is not a score of zero. #### Best rankings by task - website #1 of 114 1364 - uicomponent #1 of 104 1381 - 3d #1 of 100 1431 - codecategories #2 of 108 1373 - svg #3 of 77 1344 - fullstack #3 of 41 1318 - webapps #3 of 39 1313 - gamedev #4 of 107 1371 ### Capability | Context window | 1.0M | | --- | --- | | Max output | 944K | | Input modes | text, image, video, file, audio | | Tool use | yes | | Reasoning | always on | ### Provenance | Price source | openrouter.ai | | --- | --- | | Fetched | 2026-09-19 | | Quality data | verified | Muse Spark 1.3 is a multimodal reasoning model from Meta for long-running agentic, multi-agent, and coding workflows. It is designed to keep track of information across extended tasks, work through... ## Questions this page answers ### What does Muse Spark 1.3 cost? $1.25/M in, $4.25/M out in this catalogue, as of the fetch date on this page. That is the API row, not a subscription. ### Does Muse Spark 1.3 have an independent quality score? Muse Spark 1.3 has an LMArena score in this catalogue. ### What beats Muse Spark 1.3? Gemini 3.8 Flash scores higher and costs less — but you would give something up. ### Does this page use Artificial Analysis scores for Muse Spark 1.3? No. Artificial Analysis figures are not published here. Quality on this page is LMArena Elo where a score exists; otherwise the row is unrated. [Check whether this is still the one to buy](/check/meta__muse-spark-1.3/) [Cheaper alternatives](/alternatives/meta__muse-spark-1.3/) ## Related - Higher score and cheaper, with a named trade [Gemini 3.8 Flash](/models/google__gemini-3.8-flash/) - Nearby on the capability axis [Claude Opus 4.7](/models/anthropic__claude-opus-4.7/) - Same vendor [Llama 3.3 70B Instruct](/models/meta-llama__llama-3.3-70b-instruct/) - Meta models [Meta](/providers/meta/) - Where this model appears [disagreement](/disagreement/) - Nearby on the capability axis [Muse Spark 1.1](/models/meta__muse-spark-1.1/) - Same vendor [Llama 3.1 70B Instruct](/models/meta-llama__llama-3.1-70b-instruct/) - Where this model appears [effort](/effort/) - Nearby on the capability axis [Gemini 3.7 Flash](/models/google__gemini-3.7-flash/) - Same vendor [Llama 3.1 8B Instruct](/models/meta-llama__llama-3.1-8b-instruct/) - Where this model appears [significance](/significance/) - Where this model appears [cheapest-at](/cheapest-at/) ## Badge The verdict as one SVG, for a README or a docs page. It states this model's dominance status at the balanced workload on the LMArena lens, with the date it was computed, and it is rebuilt with the catalogue — so it changes when the verdict changes, including to one you would rather it did not. Markdown Copy [![Muse Spark 1.3 — Undominated.ai dominance verdict](https://undominated.ai/badge/meta__muse-spark-1.3.svg)](https://undominated.ai/models/meta__muse-spark-1.3/) HTML Copy Muse Spark 1.3 — Undominated.ai dominance verdict Direct file: [https://undominated.ai/badge/meta__muse-spark-1.3.svg](https://undominated.ai/badge/meta__muse-spark-1.3.svg) — a static SVG, written by scripts/build-badges.mjs on every build, so the copy you embed is never older than the last deploy.