Muse Spark 1.1 vs Muse Spark 1.3
At a Glance
| Compare |  Muse Spark 1.1Meta | Muse Spark 1.3Meta |
|---|---|---|
| Pricing and Limits | ||
| Context windowMaximum documented tokens | 1,000K | Not reported |
| Model facts checked | Sep 3, 2026View model evidence → | Sep 4, 2026View model evidence → |
Token prices are the lowest available sourced USD rates; input and output may use different providers. Cost ranking estimates output spend on LiveBench, not a full request bill. Ranking methodology →
Available Benchmarks
| Benchmark | Muse Spark 1.1 | Muse Spark 1.3 |
|---|---|---|
| LMArena Agent Arenaagent-2026-09-15-d25aabda0010 · outcome_score · leader | -2.9893% of row best · score · Muse Spark 1.1; 95% CI [-3.52464364, -2.43839720]; sessions 109338; observations 4434474; rank 33 | 4.20100% of row best · score · Muse Spark 1.3 (Max); 95% CI [3.33950614, 5.06185896]; sessions 31052; observations 2525117; rank 15 |
| LMArena Document Arenadocument-2026-09-13-d25aabda0010 · arena_rating · statistical tie | 1,464.70100% of row best · rating · muse-spark-1.1; 95% CI [1455.86175356, 1473.53929177]; votes 4885; rank 18 | 1,470.66100% of row best · rating · muse-spark-1.3-max; 95% CI [1452.36505006, 1488.94793707]; votes 1006; rank 15 |
| LMArena Text Arenatext-2026-09-13-d25aabda0010 · arena_rating · statistical tie | 1,480.1799% of row best · rating · muse-spark-1.1; 95% CI [1475.34892554, 1484.99642998]; votes 27615; rank 15 | 1,489.74100% of row best · rating · muse-spark-1.3-max; 95% CI [1480.91456937, 1498.56660928]; votes 4723; rank 10 |
| LMArena Vision Arenavision-2026-09-13-d25aabda0010 · arena_rating · statistical tie | 1,294.1698% of row best · rating · muse-spark-1.1; 95% CI [1286.17018729, 1302.15601223]; votes 8447; rank 21 | 1,314.56100% of row best · rating · muse-spark-1.3-max; 95% CI [1299.74034111, 1329.38210317]; votes 1804; rank 8 |
| LiveBench2026-06-25 · overall · leader | 78.5792% of row best · percent · muse-spark-1.1-xhigh · 13,652 output tokens / case | 85.47100% of row best · percent · muse-spark-1.3-xhigh · 28,234 output tokens / case |
| ToneBench2026-09-11-10-task-4ef099199c9c · overall_score · unverified | 80.7698% of row best · points · Muse Spark 1.1 (thinking) · 6,037 output tokens / case | 82.63100% of row best · points · Muse Spark 1.3 (thinking) · 6,301 output tokens / case |
| Overall ResultCounted from the protocol-matched rows above · 3 ties | 0 benchmark wins | 2 benchmark winsOverall lead |
Third-party benchmark Only like-for-like primary-publisher results are shown; raw scores, relative scores, configuration, and token spend remain visible.
Side-by-Side Facts
| Field | Muse Spark 1.1 | Muse Spark 1.3 |
|---|---|---|
| Developer | Meta | Meta |
| Family | Muse Spark | Muse Spark |
| Model | Muse Spark 1.1 | Muse Spark 1.3 |
| Version | Muse Spark 1.1 | Muse Spark 1.3 |
| Lifecycle | preview | preview |
| Released | 2026-07-09 | 2026-09-02 |
| Knowledge cutoff | Unknown | Unknown |
| Input modalities | Text, Image, Video, Audio | Text, Image, Video |
| Output modalities | Text | Text |
| Context window | 1,000K | Unknown |
| Total parameters | Unknown | Unknown |
| Active parameters | Unknown | Unknown |
| License | Unknown | Unknown |
| Open weights | No | No |
| API available | Yes | Yes |
| Self-hostable | No | No |
| Provider access | Unknown | Unknown |
| Capabilities | chat, computer-use, generation, reasoning, research, structured_outputs, tools | chat, computer-use, generation, reasoning, research, tools |
Muse Spark 1.1 Capabilities
Muse Spark 1.3 Capabilities
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Primary Evidence
Sources and Freshness
Questions
Muse Spark 1.1 vs Muse Spark 1.3 FAQs
Is Muse Spark 1.1 or Muse Spark 1.3 better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Muse Spark 1.1 and Muse Spark 1.3, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Muse Spark 1.1 or Muse Spark 1.3?+
Neither model has a directly sourced input price in this comparison. Neither model has a directly sourced output price in this comparison.
Which has a larger context window, Muse Spark 1.1 or Muse Spark 1.3?+
Neither model has a larger sourced context window in this comparison. Muse Spark 1.1 is 1,000K and Muse Spark 1.3 is —.
Which performs better in benchmarks, Muse Spark 1.1 or Muse Spark 1.3?+
Muse Spark 1.3 leads the current overall benchmark count. The result uses 5 protocol-matched benchmarks from 2 publishers; it is not a universal quality score.
Can Muse Spark 1.1 or Muse Spark 1.3 be self-hosted?+
Both models have the same recorded self-hosting status: unsupported. Muse Spark 1.1 is not marked open weight; Muse Spark 1.3 is not marked open weight.
Can Muse Spark 1.1 and Muse Spark 1.3 understand images?+
Muse Spark 1.1 is documented with image input; Muse Spark 1.3 is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Muse Spark 1.1 or Muse Spark 1.3?+
Neither has a larger sourced maximum output. Muse Spark 1.1 is — and Muse Spark 1.3 is —.
Do Muse Spark 1.1 and Muse Spark 1.3 support reasoning and tool use?+
Muse Spark 1.1: reasoning, tool calling, and image input. Muse Spark 1.3: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, Muse Spark 1.1 or Muse Spark 1.3?+
Muse Spark 1.1 has 0 sourced provider routes; Muse Spark 1.3 has 0, a tie.
Which offers better value, Muse Spark 1.1 or Muse Spark 1.3?+
There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.