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This is the free OpenRouter endpoint for MiniMax's M3, a 428B-parameter mixture-of-experts model (23B active, MiniMax Community License, 1M-token context) with native image and video multimodality and MiniMax Sparse Attention for long-context efficiency, released mid-2026. Free access is rate-limited, making it best suited for experimenting with its coding and long-horizon agentic capabilities rather than production workloads.

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AuthorMinimax
Country🇨🇳 China
ReleasedMay 31, 2026
Overview
Cost rate
Free
Context
1M
Input
Output
Reasoning
Tool calling
Structured outputs
Pricing/M tokens
Input$0.00
Cached input$0.00
Output$0.00
Context
Context length1,048,576
Max output tokens943,718
Knowledge cutoff-
Performance
Throughput87 tok/s
Latency2s

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#66Mathematical#70Software & IT Services#78Entertainment, Sports, & Media#87
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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
Throughput-
Latency-

Benchmarks

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

Intelligence

57.6
Claude Opus 5.5 (Max, Default Fallback)
56.0
Claude Sonnet 5.5 (Max, Default Fallback)
53.4
Claude Fable 5.1 (Max, Default Fallback)
52.7
GPT-6 Astra (Max)
52.6
Gemini 4 Argon (High)
34.6
GPT-6 Luna

MiniMax M3 (free) has no data

Coding

81.6
Claude Fable 5.1 (Max, Default Fallback)
78.3
GPT-5.6 Sol (Xhigh)
78.0
Claude Opus 5 (Max)
77.1
GPT-6 Astra (High)
76.8
Grok 4.6 (High)
76.7
GPT-5.6 Terra (Max)

MiniMax M3 (free) has no data

GPT-6 Luna has no data

Automation & Tool Use

57.9
Claude Fable 5.1 (Max, Default Fallback)
56.5
Claude Opus 5 (Max)
56.0
Qwen3.8 Max (0902)
55.5
Muse Spark 1.3 (Max)
53.1
GLM-5.3 (Max)
53.0
Grok 4.6 (High)

MiniMax M3 (free) has no data

GPT-6 Luna has no data

Intelligence, coding & agentic scores from Artificial Analysis.

Software & IT Services

arena.ai
1562
Gemini 4 Argon (High)
1540
Claude Opus 4.7 (High)
1539
Claude Fable 5 (High)
1538
Claude Opus 5.5 (High)
1537
Claude Opus 4.6 (High)
1534
Muse Wonder (Max)
1531
Muse Spark 1.2 (xHigh)
1531
Claude Fable 5.1 (Max)
1529
MiMo V2.6 Pro
1488
GPT-6 Luna

MiniMax M3 (free) has no data

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