---
title: "Fable 5"
type: entity
entity_type: model
url: https://frontiernewswire.com/models/fable-5
updated: 2026-09-04T13:10:02.000Z
---

# Fable 5

Canonical: https://frontiernewswire.com/models/fable-5

- **Type:** Model
- **Signals:** 9
- **First seen:** Aug 19, 2026
- **Last seen:** Sep 4, 2026

## Recent signals

- [Artificial Analysis Coding Agent Index: GPT-6 Astra scored 67, roughly equal to Claude Opus 5, Fable 5, and Muse Spark 1.3, but trailing leader Fable 5.1's 70 (Artificial Analysis)](https://frontiernewswire.com/s/artificial-analysis-coding-agent-index-gpt-6-astra-scored-67-roughly-e07dae3d) (Sep 4, 2026)
- [Claude Fable 5.1 made me a really nice animated pelican](https://frontiernewswire.com/s/claude-fable-5-1-made-me-a-really-nice-animated-pelican-v6cb14383) (Sep 1, 2026)
- [Anthropic says Fable 5.1 "will cost an estimated 25% less than Fable 5 for typical workloads" and up to \~45% less for "highly agentic work" (Zac Hall/9to5Mac)](https://frontiernewswire.com/s/anthropic-says-fable-5-1-will-cost-an-estimated-25-less-than-fable-5-57adf887) (Sep 1, 2026)
- [Anthropic prices Fable 5.1 at $10/1M input tokens and $50/1M output tokens, unchanged from Fable 5, and cuts cache read pricing by 75% to $0.25/1M tokens (Frederic Lardinois/The New Stack)](https://frontiernewswire.com/s/anthropic-prices-fable-5-1-at-10-1m-input-tokens-and-50-1m-output-50ff3272) (Sep 1, 2026)
- [Anthropic launches Claude Fable 5.1 and says it’s up to 45 percent cheaper for agentic work](https://frontiernewswire.com/s/anthropic-launches-claude-fable-5-1-and-says-its-up-to-45-percent-v84e4d2c8) (Sep 1, 2026)
- [Anthropic Releases Claude Fable 5.1 and Claude Mythos 5.1: 52.6% on Terminal-Bench-Science and 75% Cheaper Cache Reads](https://frontiernewswire.com/s/anthropic-releases-claude-fable-5-1-and-claude-mythos-5-1-52-6-on-vfc0348df) (Sep 1, 2026)
- [Anthropic says Fable 5.1 will cost an estimated 25% less than Fable 5 for typical workloads and up to 45% less for highly agentic work (Rachel Metz/Bloomberg)](https://frontiernewswire.com/s/anthropic-says-fable-5-1-will-cost-an-estimated-25-less-than-fable-5-de78fba8) (Sep 1, 2026)
- [Ramp data: Fable 5, launched in June, has plateaued at \~11% of spending on Anthropic tools, as companies shift to cheaper models; Opus 5 surpassed Fable 5](https://frontiernewswire.com/s/ramp-data-fable-5-launched-in-june-has-plateaued-at-11-of-spending-on-b438a688) (Aug 24, 2026)
- [Z.ai's GLM-5.3 scores 60 on the Artificial Analysis Intelligence Index, seven points above GLM-5.2, on par with Kimi K3, but below Opus 5's 63 and Fable 5's 62](https://frontiernewswire.com/s/z-ais-glm-5-3-scores-60-on-the-artificial-analysis-intelligence-index-187f3b34) (Aug 19, 2026)

## Related

- [Anthropic](https://frontiernewswire.com/companies/anthropic) (Company)
- [Claude Fable 5.1](https://frontiernewswire.com/models/claude-fable-5-1) (Model)
- [Claude Opus 5](https://frontiernewswire.com/models/claude-opus-5) (Model)
- [Mythos 5.1](https://frontiernewswire.com/models/mythos-5-1) (Model)
- [Fable 5.1](https://frontiernewswire.com/models/fable-5-1) (Model)
- [Artificial Analysis](https://frontiernewswire.com/companies/artificial-analysis) (Company)
- [AI coding agents](https://frontiernewswire.com/topics/ai-coding-agents) (Topic)
- [Z.ai](https://frontiernewswire.com/companies/z-ai) (Company)

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