Muse Spark 1.3
Muse Spark 1.3Alternatives?
CheaperCommand A+thinkingOpen×2.2-70%$0.30 / $1.50Context: 1M → 128K+1
BetterGranite 4.2 3BthinkingOpen+19%-100%$0.006Context: 1M → 128K+1OOpenMiniCPM5 1Bnon-thinking×34.9——Context: 1M → 131K+1
CheaperGemini 4 Argonhigh×2.1-25%*$1.62Synchronous output stops at 65,536+2lCheaperLFM2.5 2.6BthinkingOpen+97%-81%$0.35 / $0.50Context: 1M → 131K+2Command A+thinkingOpen×2.2-70%$0.30 / $1.50Context: 1M → 128K+1Gemini 4 Argonhigh×2.1-25%*$1.62Synchronous output stops at 65,536+2lLFM2.5 2.6BthinkingOpen+97%-81%$0.35 / $0.50Context: 1M → 131K+2
Grok 4.3medium+86%-22%$1.25 / $2.50
MiniMax M3thinkingOpen+71%-76%$0.51Context: 1M → 524K+2Granite 4.2 3BthinkingOpen+19%-100%$0.006Context: 1M → 128K+1Granite 4.2 30BthinkingOpen+23%-97%$0.072Context: 1M → 128K+1MQuasar 438B+47%-93%$0.15No image input
MiMo v2.5 ProthinkingOpen+27%-93%$0.15No image input+1Grok 4.3high+22%-90%$0.21Command A+thinkingOpen×2.2-70%$0.30 / $1.50Context: 1M → 128K+1lLFM2.5 2.6BthinkingOpen+97%-81%$0.35 / $0.50Context: 1M → 131K+2Llama 4 Mavericknon-thinkingOpen-65%-98%$0.038No PDF inputMuse Sparkthinking-63%—$1.25 / $4.25Only n=1 · Meta / Chat Completions+1Muse Glimmer 30BhighOpen-62%-97%$0.058Context: 1M → 131KLlama 4 Scoutnon-thinkingOpen-60%-95%$0.11No PDF inputMuse Spark 1.1xhigh-37%-22%$1.69Only n=1 · Meta / Chat Completions+1Muse Spark 1.2xhigh-5%-40%$1.29Only auto tool_choice is supported+1Muse Wondermax+19%+301%$8.63Only auto tool_choice is supported+5Muse Spark OpenxhighOpen+31%-61%$0.84Reasoning off leaves output unchanged · Self-hosted / llama.cpp+1All Meta models →History
4 versionsBenchmarks
in Chat & KnowledgeWatch out 6
Only auto tool_choice is supported›
tool_choice none, required or a named function returns HTTP 400; use auto and handle either a tool call or text. Source ↗
Search filters return HTTP 400 · Messages API›
allowed_domains, blocked_domains and max_uses return HTTP 400 on Messages search grounding; omit them and use the supported web_search tool. Source ↗
Manual budget does not set effort · Messages API›
Compatibility budget_tokens does not set reasoning effort; use output_config.effort for depth control. Source ↗
No Chat Completions search grounding · Chat Completions›
Search grounding is unavailable in Chat Completions; use Responses or Messages. Source ↗
Reasoning cannot be disabled›
Muse Wonder and Muse Spark do not support disabling reasoning with none; keep reasoning enabled. Source ↗
Private reasoning still costs tokens›
Private reasoning consumes the output budget and billed output tokens; budget for it even though it is absent from the response body. Source ↗
FAQ
How much does Muse Spark 1.3 cost?›
$1.25 per 1M input tokens and $4.25 per 1M output tokens; cached input $0.15 per 1M. A typical benchmark task costs about $2.15 at xhigh effort.
Is Muse Spark 1.3 free to use?›
There is no free API; the cheapest paid price is $1.25 per 1M input tokens.
How good is Muse Spark 1.3, and what is it best at?›
#17 of 336 in Chat & Knowledge, #32 of 134 in Coding, #28 of 135 in Agents & Tool Use, #14 of 197 in Writing & Language, #12 of 125 in Vision & Documents. Strongest at: Coding, Agents & work tasks, Reasoning, Science, Long context, Knowledge, Vision.
Is Muse Spark 1.3 better than Muse Spark 1.2?›
On AA Omniscience · Hallucination Rate, Muse Spark 1.3 scores 31.5 vs 33.3 — higher. It is 67% more expensive per task.
How can I use Muse Spark 1.3?›
Through the API of Meta.
What is the context window of Muse Spark 1.3?›
1M tokens, with up to 944K output tokens.
When was Muse Spark 1.3 released? Is there a newer version?›
Released 2026-09-02. It is the current version in its line.
Is Muse Spark 1.3 open source?›
No, Muse Spark 1.3 is a closed model available through an API. The closest open-weights option here is MiniCPM5 1B.
Can Muse Spark 1.3 read images?›
It accepts text and images, PDF files, video as input.
What is Muse Spark 1.3?›
Muse Spark 1.3 is a closed language model from Meta, released Sep 2026, the successor to Muse Spark 1.2.
What are the best alternatives to Muse Spark 1.3?›
Command A+ (cheaper), Granite 4.2 3B (better), MiniCPM5 1B (open weights).