Claude Fable 5.1 vs Gemini 3.8 Flash Cyber
At a Glance
| Compare | Claude Fable 5.1Anthropic |  Gemini 3.8 Flash CyberGoogle DeepMind |
|---|---|---|
| Intelligence, Cost, and Efficiency | ||
| IntelligenceHigher is better · MM Intelligence v2.5 | #1 of 4699.0 score · 3/3 sources · complete | UnrankedNot in the 46-model eligible cohort |
| CostLower is better · Published-token output estimate | #43 of 44$0.824 per LiveBench case | UnrankedNot in the 44-model eligible cohort |
| EfficiencyHigher is better · MM Efficiency v1.5 | #22 of 3851.7 score · 3/3 sources · complete | UnrankedNot in the 38-model eligible cohort |
| Pricing and Limits | ||
| Input priceFrom · USD / 1M tokens | $10.00Anthropic ↗ · Sep 3, 2026 | Not reported |
| Output priceFrom · USD / 1M tokens | $50.00Anthropic ↗ · Sep 3, 2026 | Not reported |
| Context windowMaximum documented tokens | 1,000K | Not reported |
| Model facts checked | Sep 2, 2026View model evidence → | Sep 2, 2026View model evidence → |
Token prices are the lowest available sourced USD rates; input and output may use different providers. Cost ranking estimates output spend on LiveBench, not a full request bill. Ranking methodology →
Available Benchmarks
Side-by-Side Facts
| Field | Claude Fable 5.1 | Gemini 3.8 Flash Cyber |
|---|---|---|
| Developer | Anthropic | Google DeepMind |
| Family | Claude 5 1 | Gemini 3 |
| Model | Claude Fable 5.1 | Gemini 3.8 Flash Cyber |
| Version | Claude Fable 5.1 | Gemini 3.8 Flash Cyber |
| Lifecycle | active | active |
| Released | 2026-09-01 | 2026-09-02 |
| Knowledge cutoff | 2026-06-01 | Unknown |
| Input modalities | Text, Image | Text |
| Output modalities | Text | Text |
| Context window | 1,000K | Unknown |
| Total parameters | Unknown | Unknown |
| Active parameters | Unknown | Unknown |
| License | Unknown | Unknown |
| Open weights | No | No |
| API available | Yes | No |
| Self-hostable | No | No |
| Provider access | Anthropic (Standard) | Unknown |
| Capabilities | chat, generation, reasoning, tools | automated-patching, cybersecurity, reasoning, vulnerability-detection |
Claude Fable 5.1 Capabilities
Gemini 3.8 Flash Cyber Capabilities
Related Comparisons
All text comparisons →| A | Pair | B | Context |
|---|---|---|---|
Claude Fable 5Anthropic | vs | Claude Fable 5.1Anthropic | family variantsimage, text |
Claude Fable 5.1Anthropic | vs |  GPT-6 AstraOpenAI | cross-developer peersimage, text |
Claude Fable 5.1Anthropic | vs | Gemini 3.1 ProGoogle DeepMind | cross-developer peerstext |
Claude Fable 5.1Anthropic | vs |  DeepSeek-V4.1-FlashDeepSeek | cross-developer peersimage, text |
Claude Fable 5.1Anthropic | vs | Grok 4.6xAI | cross-developer peersimage, text |
Claude Fable 5.1Anthropic | vs |  Qwen3.8-MaxQwen | cross-developer peersimage, text |
Claude Fable 5.1Anthropic | vs |  Kimi-K3Moonshot AI | cross-developer peersimage, text |
 MiniMax-M3MiniMax | vs | Claude Fable 5.1Anthropic | cross-developer peersimage, text |
Claude Fable 5.1Anthropic | vs |  GLM-5.3Z.ai | cross-developer peerstext |
Claude Fable 5.1Anthropic | vs |  Hy4 previewTencent | cross-developer peerstext |
Claude Fable 5.1Anthropic | vs | Seed 2.1 ProByteDance Seed | cross-developer peersimage, text |
Claude Fable 5.1Anthropic | vs |  Mistral Large 3Mistral AI | cross-developer peersimage, text |
Primary Evidence
Sources and Freshness
Questions
Claude Fable 5.1 vs Gemini 3.8 Flash Cyber FAQs
Is Claude Fable 5.1 or Gemini 3.8 Flash Cyber better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Claude Fable 5.1 and Gemini 3.8 Flash Cyber, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Claude Fable 5.1 or Gemini 3.8 Flash Cyber?+
Only Claude Fable 5.1 has a directly sourced input price: $10.00 per million tokens. Only Claude Fable 5.1 has a directly sourced output price: $50.00 per million tokens.
Which has a larger context window, Claude Fable 5.1 or Gemini 3.8 Flash Cyber?+
Neither model has a larger sourced context window in this comparison. Claude Fable 5.1 is 1,000K and Gemini 3.8 Flash Cyber is —.
Which performs better in benchmarks, Claude Fable 5.1 or Gemini 3.8 Flash Cyber?+
There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.
Can Claude Fable 5.1 or Gemini 3.8 Flash Cyber be self-hosted?+
Both models have the same recorded self-hosting status: unsupported. Claude Fable 5.1 is not marked open weight; Gemini 3.8 Flash Cyber is not marked open weight.
Can Claude Fable 5.1 and Gemini 3.8 Flash Cyber understand images?+
Claude Fable 5.1 is documented with image input; Gemini 3.8 Flash Cyber is not documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Claude Fable 5.1 or Gemini 3.8 Flash Cyber?+
Neither has a larger sourced maximum output. Claude Fable 5.1 is 128K and Gemini 3.8 Flash Cyber is —.
Do Claude Fable 5.1 and Gemini 3.8 Flash Cyber support reasoning and tool use?+
Claude Fable 5.1: reasoning, tool calling, and image input. Gemini 3.8 Flash Cyber: reasoning. Feature support does not establish relative quality.
Which is available from more inference providers, Claude Fable 5.1 or Gemini 3.8 Flash Cyber?+
Claude Fable 5.1 has 1 sourced provider route; Gemini 3.8 Flash Cyber has 0, so Claude Fable 5.1 has broader tracked availability.
Which offers better value, Claude Fable 5.1 or Gemini 3.8 Flash Cyber?+
There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.