Claude Fable 5.1 Paid vs 
Nano Banana 2.1 Paid
Claude Fable 5.1 vs Nano Banana 2.1 compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.
Claude Fable 5.1 — full profile › · Nano Banana 2.1 — 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)
$7.5 /M outputManaged API (no infra to run)
Claude Fable 5.1 vs Nano Banana 2.1 specs
| Spec | Claude Fable 5.1 | Nano Banana 2.1 | Winner |
|---|---|---|---|
| Maker | Anthropic | – | |
| Type | Proprietary | Proprietary | – |
| Context window | 1M tokens | 66K tokens | |
| Input price | $10/M | $1.5/M | |
| Output price | $50/M | $7.5/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
Nano Banana 2.1 is ~6.7× cheaper than Claude Fable 5.1 on output tokens ($7.5 vs $50 per M tokens).
- You want frontier performance through a managed API
- You need the longer 1M context window
- 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 | Nano Banana 2.1 |
|---|---|---|
| Open weights (downloadable) | ✗ | ✗ |
| Self-hostable | ✗ | ✗ |
| Runs fully offline | ✗ | ✗ |
| Vision / multimodal | ✓ | ✓ |
| Tool / function calling | ✓ | ✓ |
| 1M+ context window | ✓ | ✗ |
Benchmarks: Claude Fable 5.1 vs Nano Banana 2.1
Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).
Benchmark data by Artificial Analysis.
How Claude Fable 5.1 and Nano Banana 2.1 score
| Criterion | Claude Fable 5.1 | Nano Banana 2.1 |
|---|---|---|
| Cost-efficiency | 2.0 | 4.0 |
| Context window | 5.0 | 3.0 |
| 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...
Nano Banana 2.1 Paid
Nano Banana 2.1 (Gemini Nano Banana 2.1) is Google's image generation and editing model on the Flash tier, succeeding Nano Banana 2 and Nano Banana Pro. It improves product recontextualization,...
Frequently asked questions
Claude Fable 5.1 vs Nano Banana 2.1 — which is cheaper?
Nano Banana 2.1 is cheaper on output ($7.5/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 Nano Banana 2.1 — which should I pick in 2026?
Choose Nano Banana 2.1 for the lower output price ($7.5/M vs $50/M). Choose Claude Fable 5.1 if you need the larger 1M context window.
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