Claude Fable 5.1 Paid vs Claude Fable 5 (batch) Paid
Claude Fable 5.1 vs Claude Fable 5 (batch) compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.
Claude Fable 5.1 — full profile › · Claude Fable 5 (batch) — full profile ›
Prices & specs refreshed from live data · olud.ai
Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.
$50 /M outputManaged API (no infra to run)
$25 /M outputManaged API (no infra to run)
Claude Fable 5.1 vs Claude Fable 5 (batch) specs
| Spec | Claude Fable 5.1 | Claude Fable 5 (batch) | Winner |
|---|---|---|---|
| Maker | Anthropic | Anthropic | – |
| Type | Proprietary | Proprietary | – |
| Context window | 1M tokens | 1M tokens | = Tie |
| Input price | $10/M | $5/M | |
| Output price | $50/M | $25/M | |
| Vision / multimodal | Yes | Yes | = Tie |
| Tool / function calling | Yes | Yes | = Tie |
| Self-hostable | No (API only) | No (API only) | – |
| License | Proprietary | Proprietary | – |
Price gap & when to choose each
Claude Fable 5 (batch) is ~2.0× cheaper than Claude Fable 5.1 on output tokens ($25 vs $50 per M tokens).
- You want frontier performance through a managed API
- You value reliability & ecosystem
- You don't want to manage infrastructure
- You want frontier performance through a managed API
- You want the lower output price
- You value reliability & ecosystem
- You don't want to manage infrastructure
Feature comparison
| Capability | Claude Fable 5.1 | Claude Fable 5 (batch) |
|---|---|---|
| Open weights (downloadable) | ✗ | ✗ |
| Self-hostable | ✗ | ✗ |
| Runs fully offline | ✗ | ✗ |
| Vision / multimodal | ✓ | ✓ |
| Tool / function calling | ✓ | ✓ |
| 1M+ context window | ✓ | ✓ |
Benchmarks: Claude Fable 5.1 vs Claude Fable 5 (batch)
Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).
Benchmark data by Artificial Analysis.
How Claude Fable 5.1 and Claude Fable 5 (batch) score
| Criterion | Claude Fable 5.1 | Claude Fable 5 (batch) |
|---|---|---|
| Cost-efficiency | 2.0 | 3.0 |
| Context window | 5.0 | 5.0 |
| Openness | 1.5 | 1.5 |
| Self-hosting | 1.0 | 1.0 |
| Multimodality | 5.0 | 5.0 |
Scores come from live data — output price (cost), context length, open vs closed weights (openness & self-hosting) and vision/tool support (multimodality). Raw task quality isn't scored here; it depends on your benchmark — see the verdict.
What each model is
Claude Fable 5.1 Paid
Claude Fable 5.1 improves on Claude Fable 5 across the board, with the biggest gains in agentic coding, long-running agentic workflows, and knowledge work: long code refactors, front-end and visual...
Claude Fable 5 (batch) Paid
Claude Fable 5 is a Mythos-class model from Anthropic, built for autonomous knowledge work and coding. It supports text, image, and file inputs with text output, with reasoning support and...
Frequently asked questions
Claude Fable 5.1 vs Claude Fable 5 (batch) — which is cheaper?
Claude Fable 5 (batch) is cheaper on output ($25/M vs $50/M).
Which has the larger context window?
Claude Fable 5.1 offers the larger context window (1M tokens).
Claude Fable 5.1 vs Claude Fable 5 (batch) — which should I pick in 2026?
Choose Claude Fable 5 (batch) for the lower output price ($25/M vs $50/M). Choose Claude Fable 5.1 if you need the larger 1M context window.
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