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Muse Spark 1.2 Contributor meta
Release timeline
Stages observed by the nightly radar: announced → API only → weights public → served by third parties. Each entry carries the source it was seen at.
- 2026-08-21 · API only source seeded from the earliest dated observation when first seen · observed 2026-10-07 20:20 UTC
Description
Muse Spark 1.2 contributor tier is a reasoning model from Meta designed for developers who want to start building at an even lower cost. It’s meaningfully cheaper than Muse Spark...
via OpenRouter listing · observed 2026-10-26 07:08 UTC. The listing text is the provider's own description, not an assessment.
Where to run 1 providers · 1 endpoints
Hosted endpoints observed for Muse Spark 1.2 Contributor, sorted by input price (USD per million tokens). Each row names its observer and date; prices change daily, so check the source before quoting. Cheapest observed input price: $0.10/M.
| Provider | Model ref | Context | Quant | $/M in | $/M out | tok/s | TTFT | Tools | Status | Observed |
|---|---|---|---|---|---|---|---|---|---|---|
| Meta openrouter | meta/muse-spark-1.2-contributor | 1M | unknown | $0.10 | $0.20 | — | — | yes | live | 2026-10-26 |
No third-party providers observed beyond the lab's own endpoints. Cache-read price $0.0020/M (source, observed 2026-10-26).
Facts
| Context length | 1,048,576 tokens (1M) · OpenRouter listing |
|---|---|
| Modalities | text + image + video + file → text |
| Max completion tokens | 943,718 |
| Supported parameters | include_reasoning, max_tokens, reasoning, reasoning_effort, repetition_penalty, response_format, structured_outputs, temperature, tool_choice, tools, top_k, top_p |
| Openness | Closed weights · closed lab |
| Stage | API only |
| Confidence | medium |
| Pricing (USD per M tokens) |
in $0.10 · out $0.20 · cache read $0.0020 OpenRouter list price (cheapest live endpoint) · source · observed 2026-10-26 07:08 UTC |
Open alternatives 5
Nearest open-weights models by modality, context and price on this watch list. Not a quality ranking.
| Model | Org | Params | Context | $/M in | License | Why it is here |
|---|---|---|---|---|---|---|
| Kimi-K3 | moonshotai | 2.78T | 1M | $0.16 | other | similar context (1.05M), vision input |
| GLM-5.3-Flash | zai-org | 321B | 1M | $0.04 | mit | similar context (1.05M), cheaper input price ($0.0413/M vs $0.1/M), vision input |
| MiniMax-M3 | MiniMaxAI | 427B | 1M | $0.22 | other | similar context (1.05M), vision input |
| DeepSeek-V4.1-Flash | deepseek-ai | 763B | 1M | $0.02 | mit | similar context (1.05M), cheaper input price ($0.02/M vs $0.1/M), vision input |
| DeepSeek-V4.1-Flash-1017 | deepseek-ai | 763B | 1M | $0.20 | mit | similar context (1.05M), vision input |
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Watch the release radar
- /feeds/upcoming.xml(RSS 2.0) · upcoming and just-released models, one item per entry
- /feeds/upcoming.json(JSON Feed 1.1) · same, JSON Feed 1.1
Email alerts are not open yet; the feeds above are the same data. See feeds for the item schema.
Sources
- openrouter meta/muse-spark-1.2-contributor · observed 2026-10-26 07:08 UTC
Radar run: 2026-10-26 07:08 UTC · Last verified 2026-10-26 07:08 UTC