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| 3 models | metaMeta: Muse Spark OpenRemove × | fireworksFireworks: Ember-1Remove × | openaiOpenAI: GPT-6 LunaRemove × |
|---|---|---|---|
| What’s different | OpenRouter lists a 1,048,576-token context and up to 943,718 output tokens for this open-weight model aimed at agentic coding. | Ember-1 is a specialized reasoning model from Fireworks Research, built on Kimi K3. It is designed to make every token go further: it produces shorter reasoning traces, using roughly 40%... | Can turn reasoning off for high-volume requests; Chat Completions tool calls require reasoning_effort=none. |
| Date | Oct 15, 2026Released | Sep 24, 2026Listed | Sep 22, 2026Released |
API prices USD · provider configuration shown below | |||
| Listed rate | $1.25 in / $4.25 out/ 1M tokensbaseten · via Hugging Face · all routes ↗ | $3.00 in / $15.00 out/ 1M tokensFireworks · via OpenRouter · all routes ↗fireworks | $0.05 in / $0.25 out/ 1M tokensOpenAI · via OpenRouter · all routes ↗openai/flex · tier=flex · prompt ≤ 272000 tokens |
| Provider endpoints | 9 endpoints → | 2 endpoints → | 9 endpoints → |
Benchmarks Each result retains its evaluation configuration | |||
| AA Intelligence ↗4.3.2 | 38.87 ↗Effort: xhigh · XhighIndependent result | Not reported | 38.12 ↗Effort: max · MaxIndependent result |
| AA-Briefcase ↗1.1 | 1,279.37 ↗Effort: xhigh · XhighIndependent result | Not reported | 1,334.66 ↗Effort: max · MaxIndependent result |
| GDPval-AA ↗2.1 | 1,401.12 ↗Effort: xhigh · XhighIndependent result | Not reported | 1,431.02 ↗Effort: max · MaxIndependent result |
| AutomationBench-AA ↗AA Index 4.3.2 collection | 49.71% ↗Effort: xhigh · XhighIndependent result | Not reported | 53.17% ↗Effort: max · MaxIndependent result |
| Terminal-Bench 4.0 · AA ↗ | 8.08% ↗Effort: xhigh · XhighHarness unreportedIndependent result | Not reported | 12.63% ↗Effort: max · MaxHarness unreportedIndependent result |
| SciCode ↗AA Index 4.3.2 collection | 58.45% ↗AA · Under reviewEffort: xhigh · XhighIndependent result | Not reported | 54.63% ↗AA · Under reviewEffort: max · MaxIndependent result |
| Humanity’s Last Exam ↗AA Index 4.3.2 collection | 43.88% ↗Effort: xhigh · XhighIndependent result | Not reported | 38.51% ↗Effort: max · MaxIndependent result |
| GDP.pdf ↗AA Index 4.3.2 collection | 18.6% ↗Effort: xhigh · XhighIndependent result | Not reported | 22.8% ↗Effort: max · MaxIndependent result |
| CritPt ↗AA Index 4.3.2 collection | 14.86% ↗AA · Under reviewEffort: xhigh · XhighIndependent result | Not reported | 19.43% ↗AA · Under reviewEffort: max · MaxIndependent result |
| AA-Omniscience ↗AA Index 4.3.2 collection | 24.65 ↗Effort: xhigh · XhighIndependent result | Not reported | 0.65 ↗Effort: max · MaxIndependent result |
| AA-LCR ↗1.1 | 78.33% ↗Effort: xhigh · XhighIndependent result | Not reported | 83.33% ↗Effort: max · MaxIndependent result |
| LiveBench ↗2.0 · 2026-10-14 (dataset 2026-09-02) | 57.57% ↗Effort: max · single run · equal mean of 7 suitesIndependent result | Not reported | 69.4% ↗Effort: max · single run · equal mean of 7 suitesIndependent result |
| LiveBench Design ↗2.0 · 2026-10-14 (dataset 2026-09-02) | 60.3% ↗Effort: max · single runIndependent result | Not reported | 82.5% ↗Effort: max · single runIndependent result |
| LiveBench Research ↗2.0 · 2026-10-14 (dataset 2026-09-02) | 80.3% ↗Effort: max · single runIndependent result | Not reported | 43.5% ↗Effort: max · single runIndependent result |
| LiveBench Browser Use ↗2.0 · 2026-10-14 (dataset 2026-09-02) | 36% ↗Effort: max · single runIndependent result | Not reported | 72% ↗Effort: max · single runIndependent result |
| LiveBench Coding ↗2.0 · 2026-10-14 (dataset 2026-09-02) | 73.6% ↗Effort: max · single runIndependent result | Not reported | 84.5% ↗Effort: max · single runIndependent result |
| LiveBench Agentic ↗2.0 · 2026-10-14 (dataset 2026-09-02) | 18.9% ↗Effort: max · single runIndependent result | Not reported | 48.1% ↗Effort: max · single runIndependent result |
| LiveBench Data Analysis ↗2.0 · 2026-10-14 (dataset 2026-09-02) | 60.2% ↗Effort: max · single runIndependent result | Not reported | 73.4% ↗Effort: max · single runIndependent result |
| LiveBench Reasoning ↗2.0 · 2026-10-14 (dataset 2026-09-02) | 73.7% ↗Effort: max · single runIndependent result | Not reported | 81.8% ↗Effort: max · single runIndependent result |
Specifications | |||
| Context window | 1M | 1M | 1.1M |
| Max output | 943.7K | 943.7K | 128K |
| Parameters | — | — | — |
| Tool calling | Supported | Supported | Supported |
| Structured output | Supported | Supported | Supported |
| Image input | Supported | Supported | Supported |
| Audio input | Supported | Not reported | Not reported |
| Video input | Supported | Not reported | Not reported |
| Reasoning | Supported | Supported | Supported |
| Prompt caching | Supported | Supported | Supported |
| Open weights | Supported | Not reported | Not reported |