SurfMind Logosurfmind
chromeAdd to Chrome

Compare models

Put models side by side on price, context, capabilities, and benchmarks.

Browse modelsLeaderboard

Muse Ember is the smallest and most efficient model from Meta that’s designed for complex reasoning execution and the work agents repeat all day: tool calls, coding agent subtasks, routing,...

Learn more
AuthorMeta
Country🇺🇸 United States
ReleasedNov 9, 2026
Overview
Cost rate
0.1x
Context
1M
Input
Output
Reasoning
Tool calling
Structured outputs
Pricing/M tokens
Input$0.10
Cached input$0.00
Output$0.50
Context
Context length1,048,576
Max output tokens943,718
Knowledge cutoff-
Performance
Throughput-
Latency-

GPT-6 Luna is the fast, low-cost tier of OpenAI's GPT-6 series (1.05M-token context, text, image, and file input, $0.10/$0.50 per million input/output tokens), released September 22, 2026 below GPT-6 Sol and the flagship GPT-6 Astra. It is built for high-volume tasks with a clear goal, such as summarization, extraction, classification, quick questions, and lightweight agentic steps.

Image understanding#68Mathematical#69Software & IT Services#77Writing, Literature, & Language#92
Learn more
AuthorOpenAI
Country🇺🇸 United States
ReleasedSep 22, 2026
Overview
Cost rate
0.1x
Context
1.1M
Input
Output
Reasoning
Tool calling
Structured outputs
Pricing/M tokens
Input$0.10
Cached input$0.01
Output$0.50
Context
Context length1,050,000
Max output tokens128,000
Knowledge cutoff-
Performance
Throughput112 tok/s
Latency8.98s

Benchmarks

Head-to-head scores across reasoning, coding, and agentic indices, plus per-domain rankings.

Intelligence

64.6
Claude Fable 5.2 (Max, Default Fallback)
59.1
Claude Opus 5.5 (Max, Default Fallback)
56.9
GPT-6 Astra (Max)
54.6
GPT-6.1 Sol (Max)
34.1
Muse Ember
23.5
GPT-6 Luna

Coding

80.7
Claude Fable 5.1
78.3
GPT-5.6 Sol
78.0
Claude Opus 5
76.9
GPT-6 Astra
76.7
GPT-5.6 Terra
76.5
Claude Fable 5

Muse Ember has no data

GPT-6 Luna has no data

Automation & Tool Use

57.2
Claude Fable 5.1
56.5
Claude Opus 5
56.0
Qwen3.8 Max (0902)
55.5
Muse Spark 1.3
53.1
GLM 5.3
52.5
Grok 4.6

Muse Ember has no data

GPT-6 Luna has no data

Intelligence, coding & agentic scores from Artificial Analysis.

Software & IT Services

arena.ai
1548
Gemini 4 Argon (High)
1542
Muse Wonder (Max)
1540
Claude Opus 4.7 (High)
1538
Claude Fable 5 (High)
1537
Claude Opus 4.6 (High)
1533
Claude Opus 5.5 (High)
1533
Muse Spark 1.2 (xHigh)
1530
GPT-6.1 Sol (Max)
1528
MiMo V2.6 Pro
1489
GPT-6 Luna

Muse Ember has no data

Popular comparisons