Model Comparison

Claude Fable 5 vs Gemini 3.5 Flash-LiteWhich is better in 2026?

Claude Fable 5 significantly outperforms across most benchmarks. Gemini 3.5 Flash-Lite is 23.5x cheaper per token.

Verdict: Claude Fable 5 vs Gemini 3.5 Flash-Lite — which is better?

Claude Fable 5 (by Anthropic) and Gemini 3.5 Flash-Lite (by Google) 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.

Claude Fable 5 outperforms in 4 benchmarks (GDPval-AA, OSWorld-Verified, SWE-Bench Pro, Terminal-Bench 2.1), while Gemini 3.5 Flash-Lite is better at 0 benchmarks. Claude Fable 5 significantly outperforms across most benchmarks.

On price, Gemini 3.5 Flash-Lite is roughly 23.5x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Gemini 3.5 Flash-Lite also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.

Choose Claude Fable 5 if…

  • you want the strongest raw capability — it leads on 4 of 4 shared benchmarks

Choose Gemini 3.5 Flash-Lite if…

  • cost matters — it's about 23.5x cheaper per token
  • you process long inputs — it offers a 1,048,576 token context window
  • you want the most recent training data — it shipped Jul 2026

Performance Benchmarks

Comparative analysis across standard metrics

4 benchmarks

Claude Fable 5 outperforms in 4 benchmarks (GDPval-AA, OSWorld-Verified, SWE-Bench Pro, Terminal-Bench 2.1), while Gemini 3.5 Flash-Lite is better at 0 benchmarks.

Claude Fable 5 significantly outperforms across most benchmarks.

Sat Jul 25 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Gemini 3.5 Flash-Lite costs less

For input processing, Claude Fable 5 ($10.00/1M tokens) is 33.3x more expensive than Gemini 3.5 Flash-Lite ($0.30/1M tokens).

For output processing, Claude Fable 5 ($50.00/1M tokens) is 20.0x more expensive than Gemini 3.5 Flash-Lite ($2.50/1M tokens).

In conclusion, Claude Fable 5 is more expensive than Gemini 3.5 Flash-Lite.*

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

Lowest available price from all providers
Sat Jul 25 2026 • llm-stats.com
Anthropic
Claude Fable 5
Input tokens$10.00
Output tokens$50.00
Best providerAnthropic
Google
Gemini 3.5 Flash-Lite
Input tokens$0.30
Output tokens$2.50
Best providerGoogle
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Gemini 3.5 Flash-Lite accepts 1,048,576 input tokens compared to Claude Fable 5's 1,000,000 tokens. Claude Fable 5 can generate longer responses up to 128,000 tokens, while Gemini 3.5 Flash-Lite is limited to 65,536 tokens.

Anthropic
Claude Fable 5
Input1,000,000 tokens
Output128,000 tokens
Google
Gemini 3.5 Flash-Lite
Input1,048,576 tokens
Output65,536 tokens
Sat Jul 25 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Claude Fable 5 and Gemini 3.5 Flash-Lite support multimodal inputs.

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

Claude Fable 5

Text
Images
Audio
Video

Gemini 3.5 Flash-Lite

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.

Claude Fable 5

Proprietary

Closed source

Gemini 3.5 Flash-Lite

Proprietary

Closed source

Release Timeline

When each model was launched

Claude Fable 5 was released on 2026-06-09, while Gemini 3.5 Flash-Lite was released on 2026-07-21.

Gemini 3.5 Flash-Lite is 1 month newer than Claude Fable 5.

Claude Fable 5

Jun 9, 2026

1 months ago

Gemini 3.5 Flash-Lite

Jul 21, 2026

3 days ago

1mo newer

Knowledge Cutoff

When training data ends

Gemini 3.5 Flash-Lite has a documented knowledge cutoff of 2026-03-31, while Claude Fable 5's cutoff date is not specified.

We can confirm Gemini 3.5 Flash-Lite's training data extends to 2026-03-31, but cannot make a direct comparison without Claude Fable 5's cutoff date.

Claude Fable 5

—

Gemini 3.5 Flash-Lite

Mar 2026

Provider Availability

Claude Fable 5 is available from Anthropic. Gemini 3.5 Flash-Lite is available from Google.

Claude Fable 5

anthropic logo
Anthropic
Input Price:Input: $10.00/1MOutput Price:Output: $50.00/1M

Gemini 3.5 Flash-Lite

google logo
Google
Input Price:Input: $0.30/1MOutput Price:Output: $2.50/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Anthropic
Higher GDPval-AA score (60.5% vs 38.0%)
Higher OSWorld-Verified score (85.0% vs 74.0%)
Higher SWE-Bench Pro score (80.0% vs 54.2%)
Higher Terminal-Bench 2.1 score (84.3% vs 54.0%)
Google
Larger context window (1,048,576 tokens)
Less expensive input tokens
Less expensive output tokens

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Claude Fable 5 and Gemini 3.5 Flash-Lite side-by-side, then vote on the output you prefer.

Claude Fable 5
✓ Preferred
Gemini 3.5 Flash-Lite
Open in Playground
AI Model Comparison Table
Feature
Anthropic
Claude Fable 5
Google
Gemini 3.5 Flash-Lite

FAQ

Common questions about Claude Fable 5 vs Gemini 3.5 Flash-Lite.

Which is better, Claude Fable 5 or Gemini 3.5 Flash-Lite?

Claude Fable 5 significantly outperforms across most benchmarks. Claude Fable 5 is made by Anthropic and Gemini 3.5 Flash-Lite is made by Google. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Claude Fable 5 compare to Gemini 3.5 Flash-Lite in benchmarks?

Claude Fable 5 scores SWE-Bench Verified: 95.0%, FrontierSWE: 90.0%, OSWorld-Verified: 85.0%, Terminal-Bench 2.1: 84.3%, SWE-Bench Pro: 80.0%. Gemini 3.5 Flash-Lite scores CharXiv-R: 76.5%, OSWorld-Verified: 74.0%, SWE-Bench Pro: 54.2%, Terminal-Bench 2.1: 54.0%, MLE-Bench: 39.2%.

Is Claude Fable 5 cheaper than Gemini 3.5 Flash-Lite?

Gemini 3.5 Flash-Lite is 33.3x cheaper for input tokens. Claude Fable 5 costs $10.00/M input and $50.00/M output via anthropic. Gemini 3.5 Flash-Lite costs $0.30/M input and $2.50/M output via google.

What are the context window sizes for Claude Fable 5 and Gemini 3.5 Flash-Lite?

Claude Fable 5 supports 1.0M tokens and Gemini 3.5 Flash-Lite 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 Claude Fable 5 and Gemini 3.5 Flash-Lite?

Key differences include context window (1.0M vs 1.0M), input pricing ($10.00 vs $0.30/M). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Fable 5 and Gemini 3.5 Flash-Lite?

Claude Fable 5 is developed by Anthropic and Gemini 3.5 Flash-Lite is developed by Google.

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