$ diff gemini-3-8-flash claude-fable-5-1
Gemini 3.8 Flash vs Claude Fable 5.1
Values come from Gemini 3.8 Flash and Claude Fable 5.1, where each is cited to its source. This page states no benchmark result and ranks neither model — it puts two published specifications next to each other. Where a lab has not published a figure, the row says so rather than guessing.
Google DeepMindGemini 3.8 Flash
- context
- 1.0M
- weights
- closed
- $/M in
- $0.75
- $/M out
- $3.75
- context
- 1M
- weights
- closed
- $/M in
- $10
- $/M out
- $50
What actually differs
- Context window
- Gemini 3.8 Flash takes 1.0M against 1M — modestly more room in a single request.
- Input price
- Gemini 3.8 Flash at $0.75/M against $10/M — 13.3× cheaper to feed.
- Output price
- Gemini 3.8 Flash at $3.75/M against $50/M — 13.3× cheaper to generate. Output dominates the bill on most agentic workloads, where the model writes far more than it reads.
- Recency
- Gemini 3.8 Flash shipped 1 day after Claude Fable 5.1 (2026-09-02 vs 2026-09-01).
Full spec
| Attribute | Gemini 3.8 Flash | Claude Fable 5.1 |
|---|---|---|
| Developer | Google DeepMind | Anthropic |
| Released | 2026-09-02 | 2026-09-01 |
| Context window | 1,048,576 tokens (65,536 max output) | 1M tokens |
| Pricing | $0.75/M input · $3.75/M output (introductory, through 2026-12-31) · $1.50/M · $7.50/M from 2027-01-01 | $10/M input · $50/M output · cache reads $0.25/M |
| License | proprietary | proprietary (API-only; no weight release) |
| Availability | Gemini API, Google AI Studio, Antigravity, Android Studio, Gemini Enterprise / Gemini Enterprise Agent Platform | Claude API as `claude-fable-5-1`; plan-tier access is disputed — see `## Conflicting Reports` |