Claude Fable 5 vs Gemini 3.5 Flash compared — price per token, context window, multimodality, openness and which to choose. Full 2026 breakdown.
Claude Fable 5 — full profile › · Gemini 3.5 Flash — full profile ›
Prices & specs refreshed from live data · OpenSourceAI.tech
Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.
| Spec | Claude Fable 5 | Gemini 3.5 Flash |
|---|---|---|
| Maker | Anthropic | |
| Type | Proprietary | Proprietary |
| Context window | 1M tokens | 1M tokens |
| Input price | $10/M | $1.5/M |
| Output price | $50/M | $9/M |
| Vision / multimodal | Yes | Yes |
| Tool / function calling | Yes | Yes |
| Self-hostable | No (API only) | No (API only) |
| License | Proprietary | Proprietary |
| Capability | Claude Fable 5 | Gemini 3.5 Flash |
|---|---|---|
| Open weights (downloadable) | ✗ | ✗ |
| Self-hostable | ✗ | ✗ |
| Runs fully offline | ✗ | ✗ |
| Vision / multimodal | ✓ | ✓ |
| Tool / function calling | ✓ | ✓ |
| 1M+ context window | ✓ | ✓ |
Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).
Benchmark data by Artificial Analysis.
| Criterion | Claude Fable 5 | Gemini 3.5 Flash |
|---|---|---|
| Cost-efficiency | 2.0 | 3.5 |
| 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.
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...
Gemini 3.5 Flash is Google's high-efficiency multimodal model, bringing near-Pro level coding and reasoning at Flash-tier cost and speed. It is highly optimized for coding proficiency and parallel agentic execution...
These variants are tracked but not compared here — one page per family keeps the comparison readable.
Gemini 3.5 Flash is cheaper on output ($9/M vs $50/M).
Gemini 3.5 Flash offers the larger context window (1M tokens).
Choose Gemini 3.5 Flash for the lower output price ($9/M vs $50/M). It also gives you the larger 1M context window.
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