Model Comparison

Gemini 3 Flash vs Claude Fable 5Which is better in 2026?

Claude Fable 5 significantly outperforms across most benchmarks. Gemini 3 Flash is 17.8x cheaper per token.

Verdict: Gemini 3 Flash vs Claude Fable 5 — which is better?

Gemini 3 Flash (by Google) and Claude Fable 5 (by Anthropic) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

Gemini 3 Flash outperforms in 0 benchmarks, while Claude Fable 5 is better at 2 benchmarks (Humanity's Last Exam, SWE-Bench Verified). Claude Fable 5 significantly outperforms across most benchmarks.

On price, Gemini 3 Flash is roughly 17.8x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Choose Gemini 3 Flash if…

  • cost matters — it's about 17.8x cheaper per token

Choose Claude Fable 5 if…

  • you want the strongest raw capability — it leads on 2 of 2 shared benchmarks
  • you want the most recent training data — it shipped Jun 2026
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Performance Benchmarks

Comparative analysis across standard metrics

2 benchmarks

Gemini 3 Flash outperforms in 0 benchmarks, while Claude Fable 5 is better at 2 benchmarks (Humanity's Last Exam, SWE-Bench Verified).

Claude Fable 5 significantly outperforms across most benchmarks.

Tue Jun 09 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Gemini 3 Flash costs less

For input processing, Gemini 3 Flash ($0.50/1M tokens) is 20.0x cheaper than Claude Fable 5 ($10.00/1M tokens).

For output processing, Gemini 3 Flash ($3.00/1M tokens) is 16.7x cheaper than Claude Fable 5 ($50.00/1M tokens).

In conclusion, Claude Fable 5 is more expensive than Gemini 3 Flash.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Tue Jun 09 2026 • llm-stats.com
Google
Gemini 3 Flash
Input tokens$0.50
Output tokens$3.00
Best providerGoogle
Anthropic
Claude Fable 5
Input tokens$10.00
Output tokens$50.00
Best providerAnthropic
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Both models have the same input context window of 1,000,000 tokens. Claude Fable 5 can generate longer responses up to 128,000 tokens, while Gemini 3 Flash is limited to 65,536 tokens.

Google
Gemini 3 Flash
Input1,000,000 tokens
Output65,536 tokens
Anthropic
Claude Fable 5
Input1,000,000 tokens
Output128,000 tokens
Tue Jun 09 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Gemini 3 Flash and Claude Fable 5 support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Gemini 3 Flash

Text
Images
Audio
Video

Claude Fable 5

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Gemini 3 Flash

Proprietary

Closed source

Claude Fable 5

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 3 Flash was released on 2025-12-17, while Claude Fable 5 was released on 2026-06-09.

Claude Fable 5 is 6 months newer than Gemini 3 Flash.

Gemini 3 Flash

Dec 17, 2025

5 months ago

Claude Fable 5

Jun 9, 2026

0 days ago

5mo newer

Knowledge Cutoff

When training data ends

Gemini 3 Flash has a documented knowledge cutoff of 2025-01-31, while Claude Fable 5's cutoff date is not specified.

We can confirm Gemini 3 Flash's training data extends to 2025-01-31, but cannot make a direct comparison without Claude Fable 5's cutoff date.

Gemini 3 Flash

Jan 2025

Claude Fable 5

—

Provider Availability

Gemini 3 Flash is available from Google. Claude Fable 5 is available from Anthropic.

Gemini 3 Flash

google logo
Google
Input Price:Input: $0.50/1MOutput Price:Output: $3.00/1M

Claude Fable 5

anthropic logo
Anthropic
Input Price:Input: $10.00/1MOutput Price:Output: $50.00/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

Google
Less expensive input tokens
Less expensive output tokens
Anthropic
Higher Humanity's Last Exam score (64.5% vs 43.5%)
Higher SWE-Bench Verified score (95.0% vs 78.0%)

Detailed Comparison

AI Model Comparison Table
Feature
Google
Gemini 3 Flash
Anthropic
Claude Fable 5

FAQ

Common questions about Gemini 3 Flash vs Claude Fable 5.

Which is better, Gemini 3 Flash or Claude Fable 5?

Claude Fable 5 significantly outperforms across most benchmarks. Gemini 3 Flash is made by Google and Claude Fable 5 is made by Anthropic. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Gemini 3 Flash compare to Claude Fable 5 in benchmarks?

Gemini 3 Flash scores Vending-Bench 2: 100.0%, AIME 2025: 99.7%, Global PIQA: 92.8%, MMMLU: 91.8%, GPQA: 90.4%. Claude Fable 5 scores SWE-Bench Verified: 95.0%, OSWorld-Verified: 85.0%, Terminal-Bench 2.1: 84.3%, SWE-Bench Pro: 80.0%, ExploitBench: 78.0%.

Is Gemini 3 Flash cheaper than Claude Fable 5?

Gemini 3 Flash is 20.0x cheaper for input tokens. Gemini 3 Flash costs $0.50/M input and $3.00/M output via google. Claude Fable 5 costs $10.00/M input and $50.00/M output via anthropic.

What are the context window sizes for Gemini 3 Flash and Claude Fable 5?

Gemini 3 Flash supports 1.0M tokens and Claude Fable 5 supports 1.0M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Gemini 3 Flash and Claude Fable 5?

Key differences include input pricing ($0.50 vs $10.00/M). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 3 Flash and Claude Fable 5?

Gemini 3 Flash is developed by Google and Claude Fable 5 is developed by Anthropic.

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