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ERNIE 5.5 Flash Preview is the latest foundation model in the ERNIE family, with comprehensive improvements in coding, agentic capabilities, knowledge work, and deep research.

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AuthorBaidu
Country🇨🇳 China
ReleasedNov 10, 2026
Overview
Cost rate
0.2x
Context
1M
Input
Output
Reasoning
Tool calling
Structured outputs
Pricing/M tokens
Input$0.28
Cached input$0.03
Output$1.13
Context
Context length1,024,000
Max output tokens921,600
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#70Software & IT Services#76Entertainment, Sports, & Media#92
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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
Throughput115 tok/s
Latency10.11s

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)
60.0
Gemini 4 Carbon (High)
59.1
Claude Opus 5.5 (Max, Default Fallback)
56.9
GPT-6 Astra (Max)
54.6
GPT-6.1 Sol (Max)
23.5
GPT-6 Luna

ERNIE-5.5-Flash-Preview has no data

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

ERNIE-5.5-Flash-Preview 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

ERNIE-5.5-Flash-Preview has no data

GPT-6 Luna has no data

Intelligence, coding & agentic scores from Artificial Analysis.

Software & IT Services

arena.ai
1550
Gemini 4 Carbon (High)
1549
Gemini 4 Argon (High)
1541
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)
1532
Muse Spark 1.2 (xHigh)
1529
GPT-6.1 Sol (Max)
1490
GPT-6 Luna

ERNIE-5.5-Flash-Preview has no data

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