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Muse Spark 1.2

Muse Spark 1.2 is a Meta model with 1.05M context, $1.25 in / $4.25 out per million tokens, last verified October 2, 2026. Open weights: no. Status: Superseded since September 2, 2026; the current pick is Muse Spark 1.3. Public-board scores are linked to the publisher; vendor-only figures stay in the watch-out, not on the board.

Muse Spark 1.2 is Meta's previous version, still listed on the Model API alongside the 1.3 refresh.

Recorded profile verification October 2, 2026Individual provider fields may change

AI model specification details
SpecificationMuse Spark 1.2
ProviderMeta
TierFrontier
Context window1.05M
Max outputNot verifiedUnverified
Input / 1M tokens$1.25
Output / 1M tokens$4.25
WeightsClosed
ParametersNot verifiedUnverified
Reasoning levelsminimal, low, medium, high, xhigh
Modalitiestext, image, video, audio, pdf
API model idmuse-spark-1.2
ReleasedAugust 5, 2026

Pricing tiers: Meta Standard $1.25/$4.25 per MTok, cached $0.15; no long-context premium. Separate muse-spark-1.2-contributor is $0.10/$0.20, cached $0.002, granting training permission for prompts/completions. Search grounding adds $2.50 per 1,000 queries.

Best for

  • Frontier reasoning
  • Meta ecosystem
  • Agentic work

Watch out

Closed weights and still in the current public catalog. Minimal/low/medium/high/xhigh are supported; none returns HTTP 400. Max is restricted to Standard Spark 1.3. Audio is listed without 1.3's degradation warning. Reasoning counts toward output budget and billing. Exact hard output cap and parameter count remain unverified; quotas are per team.

History

Muse Spark 1.2 timeline

Release and status events for this model that passed two-source verification — dated, sourced, and linked.

Source receipts

Catalog figures for this model were checked against the following sources.

Common questions

Muse Spark 1.2

Answered from the verified figures on this page rather than general guidance.

How much does Muse Spark 1.2 cost per million tokens?
Muse Spark 1.2 lists base rates of $1.25 per million input tokens and $4.25 per million output tokens. Estimate both input and output token volume and any additional charges for your workload. Meta Standard $1.25/$4.25 per MTok, cached $0.15; no long-context premium. Separate muse-spark-1.2-contributor is $0.10/$0.20, cached $0.002, granting training permission for prompts/completions. Search grounding adds $2.50 per 1,000 queries.
What is Muse Spark 1.2's context window?
Muse Spark 1.2 accepts about 1.05M tokens of context. That only matters if you routinely send very long documents, large codebases, or multi-turn histories that approach that limit.
What is Muse Spark 1.2 best for?
Muse Spark 1.2 is a frontier tier from Meta. It suits frontier reasoning, meta ecosystem, agentic work. Closed weights and still in the current public catalog. Minimal/low/medium/high/xhigh are supported; none returns HTTP 400. Max is restricted to Standard Spark 1.3. Audio is listed without 1.3's degradation warning. Reasoning counts toward output budget and billing. Exact hard output cap and parameter count remain unverified; quotas are per team.
Model comparison catalogBenchmark library