Gemma 4 26B A4B Open vs 
Claude Fable 5 Paid
Gemma 4 26B A4B vs Claude Fable 5 compared — price per token, context window, multimodality, openness and which to choose. Can the open-source model replace the paid one? Full 2026 breakdown.
Claude Fable 5 — full profile ›
Prices & specs refreshed from live data · OpenSourceAI.tech
Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.
Gemma 4 26B A4B vs Claude Fable 5 specs
| Spec | Gemma 4 26B A4B | Claude Fable 5 |
|---|---|---|
| Maker | Anthropic | |
| Type | Open-weight | Proprietary |
| Context window | 262K tokens | 1M tokens |
| Input price | $0.07/M · free self-host | $10/M |
| Output price | $0.34/M · free self-host | $50/M |
| Vision / multimodal | Yes | Yes |
| Tool / function calling | Yes | Yes |
| Self-hostable | Yes | No (API only) |
| License | Gemma License | Proprietary |
Feature comparison
| Capability | Gemma 4 26B A4B | Claude Fable 5 |
|---|---|---|
| Open weights (downloadable) | ✓ | ✗ |
| Self-hostable | ✓ | ✗ |
| Runs fully offline | ✓ | ✗ |
| Vision / multimodal | ✓ | ✓ |
| Tool / function calling | ✓ | ✓ |
| 1M+ context window | ✗ | ✓ |
Benchmarks: Gemma 4 26B A4B vs Claude Fable 5
Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).
Benchmark data by Artificial Analysis.
How Gemma 4 26B A4B and Claude Fable 5 score
| Criterion | Gemma 4 26B A4B | Claude Fable 5 |
|---|---|---|
| Cost-efficiency | 5.0 | 2.0 |
| Context window | 4.0 | 5.0 |
| Openness | 5.0 | 1.5 |
| Self-hosting | 5.0 | 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
Gemma 4 26B A4B Open
Gemma 4 26B A4B IT is an instruction-tuned Mixture-of-Experts (MoE) model from Google DeepMind. Despite 25.2B total parameters, only 3.8B activate per token during inference — delivering near-31B quality at...
Claude Fable 5 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...
Other models in these families
These variants are tracked but not compared here — one page per family keeps the comparison readable.
Frequently asked questions
Is Gemma 4 26B A4B as good as Claude Fable 5?
Gemma 4 26B A4B is open-weight and competitive on many tasks, but Claude Fable 5 may still lead on the hardest reasoning and agentic work. The gap keeps narrowing — benchmark both on your actual use case before deciding.
Can I run Gemma 4 26B A4B locally?
Yes. Gemma 4 26B A4B has open weights, so you can self-host it on your own GPUs or run it via a low-cost API. Claude Fable 5 is API-only and cannot be self-hosted.
How much cheaper is Gemma 4 26B A4B?
Gemma 4 26B A4B costs $0.34/M output vs $50/M for Claude Fable 5 — roughly 147x cheaper via API, and free if you self-host.
Gemma 4 26B A4B vs Claude Fable 5 — which should I pick in 2026?
Choose Gemma 4 26B A4B if you want to self-host, keep your data private and skip per-token fees — it's open-weight and runs on your own hardware. Choose Claude Fable 5 if you want frontier capability through a managed API with zero infrastructure to run.
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