Muse Spark 1.2 API Pricing
Muse Spark 1.2 is the middle Muse Spark checkpoint on Meta's Model API. It was the default model in Meta's own code examples until Muse Spark 1.3 took that role on September 2, 2026 — but it is still the version Meta recommends for audio, where 1.3 is degraded. It is priced identically to Muse Spark 1.1 — Meta states plainly that both checkpoints share the same standard pricing: $1.25/M input, $0.15/M cached input and $4.25/M output. The choice between the two is about the checkpoint, not the bill. There is also a Contributor tier at $0.10 / $0.002 / $0.20 — roughly 12x cheaper — which is the same checkpoint on the condition that Meta may train on your prompts and completions.
Run the numbers.
Calculator pre-loaded with Muse Spark 1.2's Standard-tier rates. Meta states there is no long-context premium, so the rate holds whether the 1M window is nearly empty or nearly full. Divide by about 12 for the Contributor tier, which trades data rights for price.
Real-world presets.
Codebase-scale migration
Reading 100-page contracts
Ticket triage
Research planning turn
This is a chars-per-token approximation, not a real tokenizer. Actual tokens vary by language, code density, and tool-call overhead — counts are typically ±10–20% off for English prose, more for code or non-Latin scripts. For exact billing, use the vendor's official tokenizer.
| Model | Input /M | Output /M | Effective blended | Context | Best for |
|---|---|---|---|---|---|
| Muse Spark 1.2 Current | $1.25 cache $0.15 | $4.25 | $0.66 agentic 92/8 | 1M | Agentic and coding work on Meta's API |
| Muse Spark 1.1 | $1.25 cache $0.15 | $4.25 | $0.66 same | 1M | Earlier Muse Spark checkpoint |
| Gemini 3.5 Flash-Lite | $0.30 cache $0.03 | $2.50 | $0.272 −2.4× | 1M | High-volume 1M-context work on a budget |
| Grok 4.3 | $1.25 cache $0.20 | $2.50 | $0.558 −15% | 1M | Output-heavy 1M-context agents |
| GPT-5.6 Luna | $0.20 cache $0.02 | $1.20 | $0.152 −4.3× | 1.05M | OpenAI-native agent stacks |
| Gemini 3.6 Flash | $0.75 cache $0.075 | $3.75 | $0.481 −27% · promo | 1M | Multimodal agents with computer use |
| Kimi K3 | $3.00 cache $0.30 | $15.00 | $1.92 +2.9× | 1M | Long-horizon agentic coding |
Frequently asked.
Muse Spark 1.2 pricing questions, with the Standard and Contributor tiers kept apart.
Q · 01 How much does Muse Spark 1.2 cost? +
$1.25/M input, $0.15/M cached input and $4.25/M output. Meta's pricing page states that Muse Spark 1.1 and 1.2 "share the same standard pricing", so switching checkpoint does not change the bill.Q · 02 What is the Contributor tier, and is it worth it? +
$0.10/M input, $0.002/M cached input and $0.20/M output — about 12x cheaper — called through the model id muse-spark-1.2-contributor. The price is the consideration: Meta may use your prompts and completions to train future models. It is a data-rights decision before it is a cost decision, and it is not appropriate for confidential or customer data. Rate limits are lower too: 150 requests/min against the Standard tier's 3,000.Q · 03 Is 1.2 better than 1.1? +
Q · 04 Does a long prompt cost more per token? +
Q · 05 What does it cost to add web search? +
$2.50 per 1,000 search queries on top of the token charges for the request. That is a per-query fee, not a per-token one, so it lands hardest on workloads that search often and generate little.