MMeta · Released Sep 2, 2026
Muse Spark 1.3
Muse Spark 1.3 is a multimodal reasoning model from Meta for long-running agentic, multi-agent, and coding workflows. It is designed to keep track of information across extended tasks, work through...
- Top 8%SciCode
- Top 12%OTIS Mock AIME
- Top 13%WebDev Arena
- Top 14%LMCA
- Released
- Sep 2 2026
- Context window
- 1M 944K out
- Input / 1M tokens
- $1.25 from Free
- Output / 1M tokens
- $4.25 from Free
Where to run it
18 providers compared
Free to try on OpenCode — free endpoints are often limited-time and rate-limited. Included in OpenCode Go. Cheapest: Bothub, ClinePass 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 |
| Bothub | $0.10 | $0.20 | — | 1M | 944K | — | Cheapest |
| ClinePass | $0.10 | $0.20 | $0.002 | 1M | 131K | — | Cheapest |
| Meta | $1.25 | $4.25 | $0.15 | 1M | 944K | 99.3%24h | +1500% |
| NanoGPT | $1.25 | $4.25 | $0.15 | 1M | 944K | — | +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 | 1M | — | +1500% |
| Requesty | $1.25 | $4.25 | $0.15 | 1M | 944K | — | +1500% |
| DevPass (LLM Gateway) | $1.25 | $4.25 | $0.15 | 1M | 131K | — | +1500% |
| CommandCode | $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 | $0.17 | 1M | 131K | — | +1660% |
| AI/ML API | $1.72 | $5.84 | $0.21 | 1M | 131K | — | +2100% |
Value
Price vs. performance
Muse Spark 1.3 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
14 benchmark scores
| Benchmark | Score | Rank | Leader |
|---|---|---|---|
| FrontierSWESoftware engineering · Ultra-long-horizon engineering tasks with a 20-hour budget each | 25.8% | #13of 19 | GPT-6 Astra65.5% |
| CursorBenchSoftware engineering · Ambiguous multi-file tasks drawn from real Cursor sessions | 41.6% | #10of 16 | Claude Opus 5.557.8% |
| SciCodeSoftware engineering · Research-coding problems from the natural sciences | 59.7% | #8of 102 | Claude Opus 5.566.9% |
| WeirdML v3Software engineering · Unfamiliar ML and data tasks with vague goals | 6.7% | #16of 22 | GPT-6 Astra42.2% |
| APEX-AgentsAgents & computer use · Long professional tasks in banking, consulting and law | 58.6% | #13of 51 | Gemini 4 Argon82.4% |
| GDP.pdfWriting & content · Answer questions about real professional PDFs | 27.6% | #9of 38 | GPT-6.1 Sol35.0% |
| WebDev ArenaDesign & visual · People vote on which model builds the better website (Elo) | 1652 | #11of 90 | Claude Opus 5.51820 |
| CritPtReasoning & knowledge · Open-ended, research-level physics problems | 26.0% | #16of 111 | GPT-5.6 Sol32.3% |
| Chess PuzzlesReasoning & knowledge · Find the single best move in 100 new puzzles | 37.0% | #38of 83 | GPT-6 Astra76.0% |
| LMCAReasoning & knowledge · Judge the quality of conceptual arguments like experts | 53.9% | #17of 123 | Claude Sonnet 5.568.3% |
| FrontierMathMaths · Expert-written problems, undergrad to early research (tiers 1–3) | 74.4% | #21of 87 | GPT-6.1 Sol93.7% |
| FrontierMath Tier 4Maths · Exceptionally hard research-level problems | 46.3% | #19of 64 | GPT-6.1 Sol100.0% |
| ProofBenchMaths · Graduate maths proofs verified in Lean 4 | 58.0% | #21of 70 | Claude Sonnet 5.5100.0% |
| OTIS Mock AIMEMaths · Competition-style problems harder than MATH Level 5 | 99.2% | #14of 120 | Gemini 4 Argon100.0% |
Specs
Details
- Model ID
meta/muse-spark-1.3- Developer
- Meta
- Release date
- Sep 2, 2026 ·
- Context window
- 1,048,576 tokens
- Max output
- 943,718 tokens
- API price
- $1.25 / $4.25 per 1M input / output tokens
- Providers
- 18
- 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.