Models/Meta/Muse Spark 1.2

Muse Spark 1.2

Meta’s Spark SKU. DeepSWE lists it at 55% ±2% / $3.70 per task at xhigh. AA title is “Muse Spark 1.2 (xhigh)”; Intelligence Index 57. Official Meta pages we opened printed no extractable per-million table. The live Continuum public allowlist we fetched does not host it. vals 404.

01

Identity

1,048,576Context in
Not published on OpenRouterContext out
2026-08-05 (OpenRouter created 1785959287)Released
ProprietaryWeights
Canonical name
Muse Spark 1.2
Aliases
muse-spark-1.2, meta/muse-spark-1.2
Continuum hosted id
Not listed as a Continuum hosted id
OpenRouter slug
meta/muse-spark-1.2
Hugging Face
None (closed or unpublished)
Modalities
text, image, file, audio, video
Closed weights Not on Continuum host list Vendor lab

OpenRouter hugging_face_id is empty. Catalog created unix 1785959287 (5 Aug 2026). 1,048,576 in; max out unpublished on that catalog row. The Mac bundled catalog names muse-spark-1.2; the live public allowlist on 19 Aug 2026 does not. We say not listed as a live Continuum hosted id.

02

Should I use this for coding agents

Use Spark when you want Meta’s current API SKU and you accept first-party or OpenRouter billing. DeepSWE official: 55% ±2% at xhigh, $3.70 per task, 99k out, 101 steps.

DeepSWEmini-swe-agent
55%±2%
bench
DeepSWE
version
v1.1
split
public 113 tasks
harness
mini-swe-agent
effort
xhigh
n
113
metric
Pass@1
value
55%
ci
±2%
$/task
$3.70
tokens
99k out
steps
101
independent as of 2026-08-13 source
Artificial Analysispublished integer
57
bench
Artificial Analysis
version
Intelligence Index
harness
published integer
metric
Intelligence Index
value
57
independent as of 2026-08-19 source
Vals Index

We did not open a vals.ai card for this identity. Chip omitted.

omitted, not invented as of 2026-08-19 source

vals 404 as of 19 Aug 2026. Chip omitted.

Ranked view: Best coding models: the independent leaderboard puts this row and every other card that carries an independent coding score on one board, with the confidence intervals left visible.

Named benches, printed only

Copied from AA or vals HTML we opened. 0.0% placeholder bars are omitted. Do not average these into the hero tiles, and do not invent CI, $/task, or steps for Artificial Analysis.

BenchPrintedNoteSourceURLAs of
AA list pair (xhigh tile) $1.25 / $4.25 per 1M Printed AA pricing sentence. Matches OpenRouter. Artificial Analysis Muse Spark 1.2 source 2026-08-19
AA Index eval cost $639.27 Printed “it cost $639.27 to evaluate Muse Spark 1.2 (xhigh) on the Intelligence Index.” Not DeepSWE $/task. Artificial Analysis Muse Spark 1.2 source 2026-08-19
03

When not to use it

Trust this before you buy

  • If you need Continuum hosting today, this id is not on the live public allowlist we fetched. The Mac bundled catalog naming it is not a live curl target.
  • Llama 4 Maverick / Scout are open-weight siblings on this hub, not this closed API SKU. Official DeepSWE row is xhigh, not a silent default. AA’s title is also the xhigh tile.
  • Closed API. No official HF repo on the catalog. No official GGUF. ai.meta.com / llama.com / llama.meta.com docs we opened printed no extractable Max per-M table: OpenRouter only. vals 404.

Plus is $25/mo with $25 weekly hosted usage. The Mac app stays free with your own keys. Get Plus is not Download for Mac.

04

Artifact

Weights

No official Hugging Face id on OpenRouter. No fake weights button. Llama 4 repos are different identities.

  • OpenRouter catalog 19 Aug 2026: $1.25 / $4.25 per million, web search $0.0025 per call, cache read $0.15 /M, created 1785959287, 1,048,576 in, max out unpublished. hugging_face_id empty.
  • Official Meta pages opened 19 Aug 2026 (ai.meta.com; llama.com / llama.meta.com docs 404) printed no extractable per-million table. Omitted, not guessed. Use OpenRouter only.
  • vals.ai /models/meta_muse-spark-1.2 returned 404. Official DeepSWE board does list Muse Spark 1.2. That chip stays.

What you can open

Lab card and OpenRouter listing only. No Hugging Face Files button, because there is no official repo to point at.

Fetched OpenRouter catalog on 2026-08-19. hugging_face_id was empty.

05

Continuum serving

Not listed as a live Continuum hosted id on 19 Aug 2026. The Mac bundled catalog still names it; we will not pretend the public gateway serves it.

Continuum hosted id not on the host list

We list first-party and OpenRouter, plus Continuum only when the live public allowlist named the id. This is not a 15-host routing table.

06

Economics

DeepSWE official: $3.70 per task at xhigh (99k out, 101 steps). That is the hero economics number.

OpenRouter catalog 19 Aug 2026: $1.25 / $4.25 per million, cache read $0.15 /M, web search $0.0025, created 1785959287. Continuum’s catalog rate card matches $1.25 / $4.25. No official Meta list extracted.

Artificial Analysis title is “Muse Spark 1.2 (xhigh)”. That page prints the same $1.25 / $4.25 pair and “it cost $639.27 to evaluate Muse Spark 1.2 (xhigh) on the Intelligence Index.” No printed tok/s sentence on that HTML besides the generic meta description.

Price this model Opens the pricing calculator preloaded with Muse Spark 1.2.

Artificial Analysis title is “Muse Spark 1.2 (xhigh)”. Intelligence Index 57, fetched 19 Aug 2026. Same page prints $1.25 / $4.25 and $639.27 to run the Index. The AA tile is the published integer 57. AA did not print a DeepSWE-style CI or step count we will copy onto the chip. Do not average AA cost with DeepSWE $3.70/task.

07

Provenance

ClaimSourceAs of
DeepSWE 55% ±2% at xhighDeepSWE official board2026-08-13
OR catalog $1.25 / $4.25, cache read $0.15/M, search $0.0025, 1,048,576 in, max out unpublished, created 1785959287, hugging_face_id emptyOpenRouter catalog2026-08-19
Official Meta pages opened; no extractable per-M table; llama.com / llama.meta.com docs 404Meta AI2026-08-19
Not on live public allowlistGET /v1/chat/hosted/models/public2026-08-19
AA title Muse Spark 1.2 (xhigh); Index 57; $1.25 / $4.25; $639.27 to evaluate IndexArtificial Analysis Muse Spark 1.22026-08-19
vals 404vals.ai Muse Spark 1.22026-08-19
OpenRouter id meta/muse-spark-1.2, context 1,048,576OpenRouter /api/v1/models2026-08-19
08

Compare, FAQ, and Get Plus

Same official DeepSWE harness (mini-swe-agent, public 113 tasks), fetched 2026-08-19. Different effort labels are the lab's own setting on that board, shown here rather than normalized.

Continue through Meta's model family with Llama 4 Maverick.

FAQ

Why does the Mac app mention it if the allowlist does not?

Bundled catalogs can lead the public gateway. This card follows the live allowlist so we never invent a curl target.

Official Meta $?

ai.meta.com printed no extractable per-M table. llama.com / llama.meta.com docs 404. OpenRouter $1.25 / $4.25 is the sourced list.

Why does the lab blog disagree with DeepSWE or Scale?

Lab posts pick a harness, an effort, a split, and sometimes a private eval set. DeepSWE publishes the official mini-swe-agent row with cost, tokens, and steps. Scale SWE-bench Pro only counts when the public shared-harness board has a row we can fetch. A higher lab number is usually a different test, not a better one.

OpenAI-compatible call

No Continuum hosted id is verified for this model, so this page does not invent a curl target. Use the first-party API or the OpenRouter slug meta/muse-spark-1.2.

Plus is $25/mo with $25 weekly hosted usage. The Mac app stays free with your own keys. Get Plus is not Download for Mac.