Claude Fable 5
Signal Radar
Five-axis snapshot of this entity's footprint
Mentions × Lab Attention
Weekly mentions (solid) and average article relevance (dotted)
Timeline
3- Research MilestoneJul 13, 2026
Solved a string theory problem stalled for six months using SymPy verification
View source - Product LaunchJul 1, 2026
Claude Fable 5 returned to Claude Code after a two-week export-control shutdown
View source- price input:
- $10 per million tokens
- price output:
- $50 per million tokens
- ShutdownJun 12, 2026
Anthropic voluntarily suspended Claude Fable 5 under a Washington directive blocking foreign users.
View source
Relationships
7Competes With
Endorsed
Frequently appears with
2Entities that show up in the same articles — shared coverage, not a stated relationship.
Recent Articles
6ActiveVision Benchmark: Humans 96.1%, Best AI 10.6%
-ActiveVision benchmark: humans 96.1%, best AI 10.6%. The 85.5-point gap reveals fundamental limits in iterative visual reasoning for current models.
85 relevanceClaude Fable 5 Solves String Theory Problem Stalled for Six Months
+Claude Fable 5 solved a string theory problem stalled for six months. Professor Yuji Tachikawa says the model made a non-trivial observation and used
100 relevanceOpenAI GPT-5.6 Sol matches Fable 5 at 1/3 cost, adds multi-agent API
~OpenAI's GPT-5.6 Sol nearly matches Claude Fable 5 on aggregate benchmarks at one-third the cost, with new multi-agent and tool-calling APIs.
95 relevanceMuxer: Open-Source Model Multiplexer Slashes Claude Code Costs by Routing
~Muxer reduces Claude Code costs by multiplexing models per subtask via agent frontmatter and session hooks. Keep Fable/Opus for planning; route boiler
70 relevanceClaude Fable 5 in Claude Code: The Routing Strategy That Saves Your Weekly Limit
+Claude Fable 5 ($10/$50 per M tokens) scores 91 on Senior Engineer benchmarks vs Opus 4.8's 63—use `/model fable` for complex, multi-file tasks, but r
88 relevanceZhipu GLM-5.2 tops global coding benchmarks, sparks 'DeepSeek moment'
-Zhipu AI's GLM-5.2 ranks top-3 globally on a coding benchmark, with US engineers calling it a daily driver superior to GPT-5.5.
100 relevance
Predictions
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AI Discoveries
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Sentiment History
| Week | Avg Sentiment | Mentions |
|---|---|---|
| 2026-W24 | 0.20 | 1 |
| 2026-W25 | -0.30 | 1 |
| 2026-W26 | -0.30 | 1 |
| 2026-W27 | 0.35 | 2 |
| 2026-W28 | -0.10 | 1 |
| 2026-W29 | 0.80 | 1 |
| 2026-W30 | -0.30 | 1 |