MMeta · Released Aug 5, 2026
Muse Spark 1.2
Muse Spark 1.2 is a reasoning model from Meta, designed for complex agentic tasks. It accepts text, images, video, and PDF documents, returns text, and offers a 1M-token context window....
- Top 13%SimpleBench
- Top 17%SciCode
- Top 21%SimpleQA Verified
- Top 25%LMCA
- Released
- Aug 5 2026
- Context window
- 1M 944K out
- Input / 1M tokens
- $1.25 from Free
- Output / 1M tokens
- $4.25 from Free
Where to run it
19 providers compared
Free to try on OpenCode — free endpoints are often limited-time and rate-limited. Included in OpenCode Go. Cheapest: LLMTR at $0.10 / $0.20 per 1M input / output tokens — 95% less than the priciest option.
| Provider | Input | Output | Cache read | Context | Max output | Uptime | vs. best |
|---|---|---|---|---|---|---|---|
| OpenCodefree · may be limited-time | Free | Free | Free | 1M | 131K | — | Free |
| OpenCode Gosubscription plan | Plan | Plan | Plan | 1M | 131K | — | Plan |
| LLMTR | $0.10 | $0.20 | $0.002 | 1M | 131K | — | Cheapest |
| Meta | $1.25 | $4.25 | $0.15 | 1M | 944K | 100%24h | +1500% |
| NanoGPT | $1.25 | $4.25 | $0.15 | 1M | 66K | — | +1500% |
| Cloudflare AI Gateway | $1.25 | $4.25 | $0.16 | 1M | 131K | — | +1500% |
| Kilo Gateway | $1.25 | $4.25 | $0.15 | 1M | 944K | — | +1500% |
| Vercel AI Gateway | $1.25 | $4.25 | $0.15 | 1M | 1M | — | +1500% |
| LLM Gateway | $1.25 | $4.25 | $0.15 | 1M | 131K | — | +1500% |
| Abacus | $1.25 | $4.25 | $0.15 | 1M | 131K | — | +1500% |
| DevPass (LLM Gateway) | $1.25 | $4.25 | $0.15 | 1M | 131K | — | +1500% |
| CommandCode | $1.25 | $4.25 | $0.15 | 1M | 131K | — | +1500% |
| Merge Gateway | $1.25 | $4.25 | $0.15 | 1M | 262K | — | +1500% |
| OrcaRouter | $1.25 | $4.25 | $0.15 | 1M | 131K | — | +1500% |
| OpenCode | $1.25 | $4.25 | $0.15 | 1M | 131K | — | +1500% |
| EmpirioLabs AI | $1.25 | $4.25 | $1.00 | 1M | 131K | — | +1500% |
| Eden AI | $1.25 | $4.25 | $0.15 | 1M | 131K | — | +1500% |
| Opper | $1.25 | $4.25 | $0.15 | 1M | 131K | — | +1500% |
| AIHubMix | $1.38 | $4.67 | — | 1M | 131K | — | +1660% |
| AI/ML API | $1.72 | $5.84 | $0.21 | 1M | 131K | — | +2100% |
Value
Price vs. performance
Muse Spark 1.2 Other Meta Other labs Value frontier · FrontierSWE vs. input price per 1M tokens (log scale) · Drag to pan, pinch or Ctrl + scroll to zoom, double-click to zoom in.
Benchmarks
12 benchmark scores
| Benchmark | Score | Rank | Leader |
|---|---|---|---|
| FrontierSWESoftware engineering · Ultra-long-horizon engineering tasks with a 20-hour budget each | 12.0% | #19of 19 | GPT-6 Astra65.5% |
| DeepSWESoftware engineering · Original long-horizon tasks across active open-source repos | 54.9% | #16of 26 | GPT-6 Astra74.1% |
| SciCodeSoftware engineering · Research-coding problems from the natural sciences | 57.4% | #17of 102 | Claude Opus 5.566.9% |
| APEX-AgentsAgents & computer use · Long professional tasks in banking, consulting and law | 45.4% | #34of 51 | Gemini 4 Argon82.4% |
| GDP.pdfWriting & content · Answer questions about real professional PDFs | 16.0% | #29of 38 | GPT-6.1 Sol35.0% |
| SimpleQA VerifiedWriting & content · Factual accuracy on 1,000 short questions | 60.3% | #16of 79 | Gemini 4 Argon76.0% |
| WebDev ArenaDesign & visual · People vote on which model builds the better website (Elo) | 1534 | #38of 90 | Claude Opus 5.51820 |
| SimpleBenchReasoning & knowledge · Common-sense trick questions about space, time and people | 74.5% | #7of 58 | Claude Fable 581.9% |
| CritPtReasoning & knowledge · Open-ended, research-level physics problems | 17.7% | #32of 111 | GPT-5.6 Sol32.3% |
| Chess PuzzlesReasoning & knowledge · Find the single best move in 100 new puzzles | 27.0% | #50of 83 | GPT-6 Astra76.0% |
| LMCAReasoning & knowledge · Judge the quality of conceptual arguments like experts | 48.4% | #30of 123 | Claude Sonnet 5.568.3% |
| ProofBenchMaths · Graduate maths proofs verified in Lean 4 | 43.0% | #38of 70 | Claude Sonnet 5.5100.0% |
Specs
Details
- Model ID
meta/muse-spark-1.2- Developer
- Meta
- Release date
- Aug 5, 2026 ·
- Context window
- 1,048,576 tokens
- Max output
- 943,718 tokens
- API price
- $1.25 / $4.25 per 1M input / output tokens
- Providers
- 19
- Input types
- text, image, video, file
- Reasoning
- Yes
- Tool calling
- Yes
- Open weights
- No
- Free tier
- No
Release date and prices from OpenRouter's catalog; providers from OpenRouter and models.dev. Buying directly from a provider can cost a little differently. Speed, latency and uptime are measured on OpenRouter only; uptime is the share of OpenRouter requests each provider served over the last day. Benchmark scores are the best result per benchmark from Epoch AI, licensed CC BY 4.0. Rank counts every model tracked here with a score.