Claude Fable 5.1 vs Gemini 3.8 Flash Cyber: Specs & Benchmark Comparison
Claude Fable 5.1 is developed by Anthropic, while Gemini 3.8 Flash Cyber comes from Google. Both were released in September 2026.
We have 7 benchmark results for Claude Fable 5.1 and 4 benchmark results for Gemini 3.8 Flash Cyber, but they were measured on different benchmarks, so there is no like-for-like scoreboard.
Claude Fable 5.1 is available through an API at $10 per million input tokens with a 1M-token context window. We do not track a hosted API for Gemini 3.8 Flash Cyber, so pricing and context cannot be compared directly.
| Characteristic | Claude Fable 5.1 | Gemini 3.8 Flash Cyber |
|---|---|---|
| Company | Anthropic | |
| Release Date | September 1, 2026 | September 2, 2026 |
| Parameters | — | — |
| Multimodal | Yes | No |
| Context (input) | 1.0M | — |
| Context (output) | 128K | — |
| Input Price / 1M | $10.00 | — |
| Output Price / 1M | $50.00 | — |
| Average Score | 59.7% | 74.6% |
Verdict
Both models show equal results — the choice depends on your specific use case.
Both models show comparable average scores: Claude Fable 5.1 — 0.6, Gemini 3.8 Flash Cyber — 0.7.
Both models were released around the same time: 9/1/2026 and 9/2/2026.
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Frequently Asked Questions
Which is better for coding — Claude Fable 5.1 or Gemini 3.8 Flash Cyber?
Which model is cheaper — Claude Fable 5.1 or Gemini 3.8 Flash Cyber?
Which has a larger context window — Claude Fable 5.1 or Gemini 3.8 Flash Cyber?
The Claude Fable 5.1 and Gemini 3.8 Flash Cyber comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Claude Fable 5.1 or Gemini 3.8 Flash Cyber page. See also the complete list of AI model comparisons.