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Comparison of o4-mini-high, remove_background_guided, Meta: Muse Spark Open
3 modelsUnknowno4-mini-highRemove ×Briaremove_background_guidedRemove ×metaMeta: Muse Spark OpenRemove ×
What’s different200K context · 100K max output · Tool calling · Structured outputPrompt-guided background removal by Bria: tell it what to keep or what to remove and get a clean cutout with true transparency, at the original resolution with the original pixels untouched. Trained…OpenRouter lists a 1,048,576-token context and up to 943,718 output tokens for this open-weight model aimed at agentic coding.
DateOct 16, 2026DiscoveredOct 14, 2026ListedOct 15, 2026Released
Listed rate$1.10 in / $4.40 out/ 1M tokensExperiential · all routes ↗Standard list rateSee provider quotes$1.25 in / $4.25 out/ 1M tokensbaseten · via Hugging Face · all routes ↗
Provider endpoints1 endpoint →0 endpoints →8 endpoints →
AA Intelligence ↗4.3.2Not reportedNot reported38.87 ↗Effort: xhigh · XhighIndependent result
AA-Briefcase ↗1.1Not reportedNot reported1,279.37 ↗Effort: xhigh · XhighIndependent result
GDPval-AA ↗2.1Not reportedNot reported1,401.12 ↗Effort: xhigh · XhighIndependent result
AutomationBench-AA ↗AA Index 4.3.2 collectionNot reportedNot reported49.71% ↗Effort: xhigh · XhighIndependent result
Terminal-Bench 4.0 · AA ↗Not reportedNot reported8.08% ↗Effort: xhigh · XhighHarness unreportedIndependent result
SciCode ↗AA Index 4.3.2 collectionNot reportedNot reported58.45% ↗AA · Under reviewEffort: xhigh · XhighIndependent result
Humanity’s Last Exam ↗AA Index 4.3.2 collectionNot reportedNot reported43.88% ↗Effort: xhigh · XhighIndependent result
GDP.pdf ↗AA Index 4.3.2 collectionNot reportedNot reported18.6% ↗Effort: xhigh · XhighIndependent result
CritPt ↗AA Index 4.3.2 collectionNot reportedNot reported14.86% ↗AA · Under reviewEffort: xhigh · XhighIndependent result
AA-Omniscience ↗AA Index 4.3.2 collectionNot reportedNot reported24.65 ↗Effort: xhigh · XhighIndependent result
AA-LCR ↗1.1Not reportedNot reported78.33% ↗Effort: xhigh · XhighIndependent result
LiveBench ↗2.0 · 2026-10-14 (dataset 2026-09-02)Not reportedNot reported57.57% ↗Effort: max · single run · equal mean of 7 suitesIndependent result
LiveBench Design ↗2.0 · 2026-10-14 (dataset 2026-09-02)Not reportedNot reported60.3% ↗Effort: max · single runIndependent result
LiveBench Research ↗2.0 · 2026-10-14 (dataset 2026-09-02)Not reportedNot reported80.3% ↗Effort: max · single runIndependent result
LiveBench Browser Use ↗2.0 · 2026-10-14 (dataset 2026-09-02)Not reportedNot reported36% ↗Effort: max · single runIndependent result
LiveBench Coding ↗2.0 · 2026-10-14 (dataset 2026-09-02)Not reportedNot reported73.6% ↗Effort: max · single runIndependent result
LiveBench Agentic ↗2.0 · 2026-10-14 (dataset 2026-09-02)Not reportedNot reported18.9% ↗Effort: max · single runIndependent result
LiveBench Data Analysis ↗2.0 · 2026-10-14 (dataset 2026-09-02)Not reportedNot reported60.2% ↗Effort: max · single runIndependent result
LiveBench Reasoning ↗2.0 · 2026-10-14 (dataset 2026-09-02)Not reportedNot reported73.7% ↗Effort: max · single runIndependent result
Context window200K—1M
Max output100K—943.7K
Parameters———
Tool callingSupportedNot reportedSupported
Structured outputSupportedNot reportedSupported
Image inputNot reportedNot reportedSupported
Audio inputNot reportedNot reportedSupported
Video inputNot reportedNot reportedSupported
ReasoningSupportedNot reportedSupported
Prompt cachingNot reportedNot reportedSupported
Open weightsNot reportedNot reportedSupported

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