Claude Sonnet 5 vs Muse Spark 1.2
At a Glance
| Compare | Claude Sonnet 5Anthropic |  Muse Spark 1.2Meta |
|---|---|---|
| Intelligence, Cost, and Efficiency | ||
| IntelligenceHigher is better · MM Intelligence v2.5 | #26 of 4660.1 score · 2/3 sources · provisional · missing ARC-AGI-2 · full-core range 40.0–73.4 | UnrankedNot in the 46-model eligible cohort |
| CostLower is better · Published-token output estimate | #29 of 44$0.194 per LiveBench case | UnrankedNot in the 44-model eligible cohort |
| EfficiencyHigher is better · MM Efficiency v1.5 | #30 of 3847.4 score · 2/3 sources · provisional · missing ARC-AGI-2 · full-core range 37.4–54.0 | UnrankedNot in the 38-model eligible cohort |
| Pricing and Limits | ||
| Input priceFrom · USD / 1M tokens | $2.00Anthropic ↗ · Sep 3, 2026 | Not reported |
| Output priceFrom · USD / 1M tokens | $10.00Anthropic ↗ · Sep 3, 2026 | Not reported |
| Context windowMaximum documented tokens | 1,000K | Not reported |
| Model facts checked | Aug 28, 2026View model evidence → | Sep 3, 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 | Claude Sonnet 5 | Muse Spark 1.2 |
|---|---|---|
| LMArena Agent Arenaagent-2026-09-15-d25aabda0010 · outcome_score · leader | 5.97100% of row best · score · Claude Sonnet 5 (High); 95% CI [4.35064977, 7.58850066]; sessions 30631; observations 3176952; rank 9 | -1.7793% of row best · score · Muse Spark 1.2 (xHigh); 95% CI [-2.69255217, -0.84918781]; sessions 33094; observations 1437075; rank 32 |
| LMArena Text Arenatext-2026-09-13-d25aabda0010 · arena_rating · leader | 1,442.1597% of row best · rating · claude-sonnet-5-high; 95% CI [1437.57467941, 1446.71829948]; votes 35301; rank 62 | 1,489.44100% of row best · rating · muse-spark-1.2 (xHigh); 95% CI [1478.95697715, 1499.92080617]; votes 3227; rank 11 |
| LMArena Vision Arenavision-2026-09-13-d25aabda0010 · arena_rating · leader | 1,277.1698% of row best · rating · claude-sonnet-5-high; 95% CI [1269.57643110, 1284.74576666]; votes 10289; rank 32 | 1,303.88100% of row best · rating · muse-spark-1.2 (xHigh); 95% CI [1289.13624882, 1318.62565115]; votes 1841; rank 14 |
| LiveBench2026-06-25 · overall · leader | 80.0198% of row best · percent · claude-sonnet-5-xhigh-effort · 19,428 output tokens / case | 81.88100% of row best · percent · muse-spark-1.2-xhigh · 18,700 output tokens / case |
| Overall ResultCounted from the protocol-matched rows above | 1 benchmark win | 3 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 | Claude Sonnet 5 | Muse Spark 1.2 |
|---|---|---|
| Developer | Anthropic | Meta |
| Family | Claude 5 | Muse Spark |
| Model | Claude Sonnet 5 | Muse Spark 1.2 |
| Version | Claude Sonnet 5 | Muse Spark 1.2 |
| Lifecycle | active | preview |
| Released | 2026-06-30 | 2026-08-05 |
| Knowledge cutoff | Unknown | Unknown |
| Input modalities | Text, Image | Text, Image, Video, Audio |
| 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 | Anthropic (Standard), Deepinfra (Standard), Openrouter (Standard) | Unknown |
| Capabilities | chat, generation, reasoning, tools | chat, computer-use, generation, reasoning, research, structured_outputs, tools |
Claude Sonnet 5 Capabilities
Muse Spark 1.2 Capabilities
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Primary Evidence
Sources and Freshness
Questions
Claude Sonnet 5 vs Muse Spark 1.2 FAQs
Is Claude Sonnet 5 or Muse Spark 1.2 better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Claude Sonnet 5 and Muse Spark 1.2, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Claude Sonnet 5 or Muse Spark 1.2?+
Only Claude Sonnet 5 has a directly sourced input price: $2.00 per million tokens. Only Claude Sonnet 5 has a directly sourced output price: $10.00 per million tokens.
Which has a larger context window, Claude Sonnet 5 or Muse Spark 1.2?+
Neither model has a larger sourced context window in this comparison. Claude Sonnet 5 is 1,000K and Muse Spark 1.2 is —.
Which performs better in benchmarks, Claude Sonnet 5 or Muse Spark 1.2?+
Muse Spark 1.2 leads the current overall benchmark count. The result uses 4 protocol-matched benchmarks from 2 publishers; it is not a universal quality score.
Can Claude Sonnet 5 or Muse Spark 1.2 be self-hosted?+
Both models have the same recorded self-hosting status: unsupported. Claude Sonnet 5 is not marked open weight; Muse Spark 1.2 is not marked open weight.
Can Claude Sonnet 5 and Muse Spark 1.2 understand images?+
Claude Sonnet 5 is documented with image input; Muse Spark 1.2 is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Claude Sonnet 5 or Muse Spark 1.2?+
Neither has a larger sourced maximum output. Claude Sonnet 5 is 128K and Muse Spark 1.2 is —.
Do Claude Sonnet 5 and Muse Spark 1.2 support reasoning and tool use?+
Claude Sonnet 5: reasoning, tool calling, and image input. Muse Spark 1.2: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, Claude Sonnet 5 or Muse Spark 1.2?+
Claude Sonnet 5 has 3 sourced provider routes; Muse Spark 1.2 has 0, so Claude Sonnet 5 has broader tracked availability.
Which offers better value, Claude Sonnet 5 or Muse Spark 1.2?+
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.