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Claude Fable 5.2 is Anthropic's most capable model for the most demanding technical work, with gains over Fable 5.1 in coding, reasoning, and vision.

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AuthorAnthropic
Country🇺🇸 United States
ReleasedNov 9, 2026
Overview
Cost rate
8x
Context
1M
Input
Output
Reasoning
Tool calling
Structured outputs
Pricing/M tokens
Input$8.00
Cached input$0.20
Output$40.00
Context
Context length1,000,000
Max output tokens128,000
Knowledge cutoff-
Performance
Throughput-
Latency-

GPT-6 Astra is OpenAI's flagship GPT-6-generation model (1.05M-token context, up to 128K output tokens, priced at $10/$50 per million input/output tokens), built for demanding end-to-end work. It excels at advanced analysis, software engineering, deep research, scientific work, and document creation, with particular strength in long-horizon agentic tasks involving computer and browser use.

Software & IT Services#13Document analysis#17Mathematical#19Image understanding#21
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AuthorOpenAI
Country🇺🇸 United States
ReleasedSep 4, 2026
Overview
Cost rate
10x
Context
1.1M
Input
Output
Reasoning
Tool calling
Structured outputs
Pricing/M tokens
Input$10.00
Cached input$1.00
Output$50.00
Context
Context length1,050,000
Max output tokens128,000
Knowledge cutoff-
Performance
Throughput42 tok/s
Latency6.5s

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)
54.5
Claude Sonnet 5.5 (Max, Default Fallback)
51.3
GPT-6.1 Terra (Max)

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

Claude Fable 5.2 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
51.0
GPT-6 Astra

Claude Fable 5.2 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
1526
GPT-6 Astra (Max)

Claude Fable 5.2 has no data

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