Meta is entering the AI API business with Muse Spark 1.1 at prices that undercut even the dirt-cheap Grok 4.5, released just yesterday. At $4.25 per million output tokens, Meta charges a fraction of what Anthropic or OpenAI ask. For pure-play AI labs burning through billions, the pressure just got worse.

Meta launched Muse Spark, its first AI model from restructured Meta Superintelligence Labs, promising tenfold compute gains over Llama 4 Maverick.

Muse Spark 1.1 is built for developers