Muse Spark 1.1

meta/muse-spark-1.1

agentic performance, tool use, and computer use.

cmd --model meta/muse-spark-1.1
Intelligence index
53.2
Output speed
not yet scored
Input
$1.25 /M
Output
$4.25 /M
Cache read
$0.15 /M
Agent-loop cost
$0.48 /M in
Context window
1.05M tokens
Released
July 9, 2026
Modalities

vs. the lineup

Muse Spark 1.1 beside its stablemates and nearest rivals. The ◆ marks the best value in each column across every row shown.

pin a rival:
ModelIntelligenceCodingSpeedInput $/MOutput $/MBlended $/MContext
Muse Spark 1.256.872.2$1.25$4.25$21.05M
Muse Spark 1.2 Contributor56.872.2$0.10$0.20$0.131.05M
Claude Opus 4.75573.6$5$25$101M
Muse Spark 1.153.271.3$1.25$4.25$21.05M
DeepSeek V4 Pro (latest)53.268.875.3$0.66$1.98$0.991M
Gemini 3.5 Flash Lite37.449.3361.2$0.30$2.50$0.851M
DeepSeek V4 Flash (latest)pinned5269.1114.6$0.22$0.66$0.331M
DeepSeek V4 Flash Vision (exp)pinned$0.22$0.66$0.331M

coding performance

The Intelligence Index and its sub-scores, ranked against every scored model in the catalog. A metric that has not been measured for Muse Spark 1.1 has been left empty.

Coding Index
71.3
#18 of 45 scored
Terminal-Bench
77.9
#24 of 45 scored
Intelligence Index
53.2
#18 of 51 scored
Long-context reasoning
81.3
reasoning across a long context
SciCode
58.2
scientific coding
GPQA Diamond
89.8
graduate-level QA

usage calculator

How far a month of credits goes on Muse Spark 1.1.

Muse Spark 1.1 runs on Pro and up — from $20/mo.
Input tokensfresh prompt
800
Output tokensmodel reply
180
Cache read tokensre-read context
50K
cost / request $0.0093 · in $1.25 · out $4.25 · cache $0.15 per M
fresh input 11%output 8%cache reads 81%
Requests / 30 days
2.2K
$20 credits ÷ $0.0093 per request
~432 quick fixes~86 bug fixes~14 feature PRs

what real work costs

Real coding tasks priced end to end on Muse Spark 1.1, from a quick lookup to a full-repo agent run.

One agent task
$0.13
180K in at 75% cache hit, 12K out
What you pay
$0.66 /M
all-in across every token that task touched
Sticker input
$1.25 /M
cache reads bill at $0.15 /M instead
TaskTokens in · outMuse Spark 1.1Muse Spark 1.2 ContributorClaude Haiku 4.5
Quick lookup / one-liner8K · 1K$0.0063$0.0003$0.0065
Review a 500-line PR60K · 4K$0.05$0.0027$0.04
Fix a bug (agent loop)180K · 12K$0.13$0.0072$0.12
Refactor a module320K · 20K$0.23$0.01$0.21
Full-repo agent run900K · 45K$0.54$0.03$0.49

frequently asked

How much does Muse Spark 1.1 cost?
$1.25/M input and $4.25/M output, cache reads $0.15/M. In an agent loop most input is cache-read, so the effective input rate is about $0.48/M.
Which plan do I need?
Available on Pro and above.
How do I switch to it?
Run cmd --model meta/muse-spark-1.1, or type /model in a session and pick it. You can switch mid-session without losing context.

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Benchmarks from Artificial Analysis (v4.1)commandcode.ai/models/muse-spark-1-1