Muse Spark 1.2 is a coding-focused update to Muse Spark 1.1 with improvements in code generation, complex debugging, codebase understanding, and end-to-end developer workflows.
Specification
most-agreed values
Context
1M
Max output
131K
Released
2026-08-05
Knowledge cutoff
—
Retires
—
Open weights
no
Input
text, image, pdf
Output
text
Price
US dollars per million tokens · most-agreed
Input
$1.25
Output
$4.25
Cache read
$0.15
Quality
3 benchmarks · 2 sources
Composite
82nd
percentile of 344 scored models
Rank
64 / 344
±0.17 sd
Evidence
3 × 2
3 or more benchmarks, from 2 or more sources
Effort range
—
one configuration only
reasoning56th1/4 bench
knowledge82nd1/1 bench
general74th1/1 bench
Every score
one row per source and configuration — nothing averaged away
| Benchmark | Score | Configuration | Source | Run |
|---|---|---|---|---|
| SimpleQA Verified | 60.3 ±1.6 | xhigh | Epoch AI | 2026-08-27 |
| LiveBench | 78.9 | xhigh · 23 runs | LiveBench | 2026-06-25 |
| Chess Puzzles | 27.0 ±4.5 | xhigh | Epoch AI | 2026-10-13 |
The leading figure for a benchmark is the median across its configurations, so one heroic high-effort run cannot set the number.
Available from 19 hosts
| Host | In $/M | Out $/M | Cache rd | Cache wr | Context | Output | Retires |
|---|---|---|---|---|---|---|---|
| abacus | $1.25 | $4.25 | $0.15 | — | 1M | 131K | — |
| cloudflare-ai-gateway | $1.25 | $4.25 | $0.16 | — | 1M | 131K | — |
| commandcode | $1.25 | $4.25 | $0.15 | — | 1M | 131K | — |
| edenai | $1.25 | $4.25 | $0.15 | — | 1M | 131K | — |
| empiriolabs | $1.25 | $4.25 | $1.00 | — | 1M | 131K | — |
| kilo | $1.25 | $4.25 | $0.15 | — | 1M | 944K | — |
| llmgateway | $1.25 | $4.25 | $0.15 | — | 1M | 131K | — |
| llmgateway-providers | $1.25 | $4.25 | $0.15 | — | 1M | 131K | — |
| meta | $1.25 | $4.25 | $0.15 | — | 1M | 131K | — |
| nano-gpt | $1.25 | $4.25 | $0.15 | — | 1M | 66K | — |
| opencode | $1.25 | $4.25 | $0.15 | — | 1M | 131K | — |
| openrouter | $1.25 | $4.25 | $0.15 | — | 1M | 944K | — |
| opper | $1.25 | $4.25 | $0.15 | — | 1M | 131K | — |
| orcarouter | $1.25 | $4.25 | $0.15 | — | 1M | 131K | — |
| vercel | $1.25 | $4.25 | $0.15 | — | 1M | 1M | — |
| aimlapi | $1.3225 | $4.4965 | $0.1587 | — | 1M | 131K | — |
| aihubmix | $1.375 | $4.675 | — | — | 1M | 131K | — |
| aihubmix · aihubmix | $1.375 | $4.675 | — | — | 1M | — | — |
| kyma · kyma | $1.773 | $6.025 | — | — | 1M | 8K | — |
Price history
append-only observations · a listing writes a row only when its price moves
| Date | Host | Field | $/M |
|---|---|---|---|
| 2026-09-02 | openrouter | Cache read | $0.15 |
| 2026-09-19 | openrouter | Cache read | $0.15 |
| 2026-10-10 | openrouter | Cache read | $0.15 |
| 2026-09-02 | openrouter | Input | $1.25 |
| 2026-09-19 | openrouter | Input | $1.25 |
| 2026-10-10 | openrouter | Input | $1.25 |
| 2026-09-02 | openrouter | Output | $4.25 |
| 2026-09-19 | openrouter | Output | $4.25 |
| 2026-10-10 | openrouter | Output | $4.25 |
| 2026-10-13 | aimlapi | Cache read | $0.2063 |
| 2026-10-23 | aimlapi | Cache read | $0.1587 |
| 2026-10-13 | aimlapi | Input | $1.7192 |
| 2026-10-23 | aimlapi | Input | $1.3225 |
| 2026-10-13 | aimlapi | Output | $5.8454 |
| 2026-10-23 | aimlapi | Output | $4.4965 |
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