Model Comparison

GLM-5 vs Claude Fable 5Which is better in 2026?

Claude Fable 5 significantly outperforms across most benchmarks. GLM-5 is 12.9x cheaper per token.

Verdict: GLM-5 vs Claude Fable 5 — which is better?

GLM-5 (by Zhipu AI) 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.

GLM-5 outperforms in 0 benchmarks, while Claude Fable 5 is better at 1 benchmark (SWE-Bench Verified). Claude Fable 5 significantly outperforms across most benchmarks.

On price, GLM-5 is roughly 12.9x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Claude Fable 5 also accepts a larger context window (1,000,000 input tokens), making it the stronger choice for long documents and large codebases.

Choose GLM-5 if…

  • cost matters — it's about 12.9x cheaper per token
  • you need open weights you can self-host or fine-tune

Choose Claude Fable 5 if…

  • you want the strongest raw capability — it leads on 1 of 1 shared benchmarks
  • you process long inputs — it offers a 1,000,000 token context window
  • you want the most recent training data — it shipped Jun 2026
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Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

GLM-5 outperforms in 0 benchmarks, while Claude Fable 5 is better at 1 benchmark (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

GLM-5 costs less

For input processing, GLM-5 ($1.00/1M tokens) is 10.0x cheaper than Claude Fable 5 ($10.00/1M tokens).

For output processing, GLM-5 ($3.20/1M tokens) is 15.6x cheaper than Claude Fable 5 ($50.00/1M tokens).

In conclusion, Claude Fable 5 is more expensive than GLM-5.*

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

Lowest available price from all providers
Tue Jun 09 2026 • llm-stats.com
Zhipu AI
GLM-5
Input tokens$1.00
Output tokens$3.20
Best providerFriendliAI
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

Claude Fable 5 accepts 1,000,000 input tokens compared to GLM-5's 200,000 tokens. Both models can generate responses up to 128,000 tokens.

Zhipu AI
GLM-5
Input200,000 tokens
Output128,000 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

Claude Fable 5 supports multimodal inputs, whereas GLM-5 does not.

Claude Fable 5 can handle both text and other forms of data like images, making it suitable for multimodal applications.

GLM-5

Text
Images
Audio
Video

Claude Fable 5

Text
Images
Audio
Video

License

Usage and distribution terms

GLM-5 is licensed under MIT, while Claude Fable 5 uses a proprietary license.

License differences may affect how you can use these models in commercial or open-source projects.

GLM-5

MIT

Open weights

Claude Fable 5

Proprietary

Closed source

Release Timeline

When each model was launched

GLM-5 was released on 2026-02-11, while Claude Fable 5 was released on 2026-06-09.

Claude Fable 5 is 4 months newer than GLM-5.

GLM-5

Feb 11, 2026

3 months ago

Claude Fable 5

Jun 9, 2026

0 days ago

3mo newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Provider Availability

GLM-5 is available from FriendliAI, ZAI. Claude Fable 5 is available from Anthropic.

GLM-5

friendli logo
FriendliAI
Input Price:Input: $1.00/1MOutput Price:Output: $3.20/1M
z logo
Unknown Organization
Input Price:Input: $1.00/1MOutput Price:Output: $3.20/1M

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

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Zhipu AI
Less expensive input tokens
Less expensive output tokens
Has open weights
Anthropic
Larger context window (1,000,000 tokens)
Supports multimodal inputs
Higher SWE-Bench Verified score (95.0% vs 77.8%)

Detailed Comparison

AI Model Comparison Table
Feature
Zhipu AI
GLM-5
Anthropic
Claude Fable 5

FAQ

Common questions about GLM-5 vs Claude Fable 5.

Which is better, GLM-5 or Claude Fable 5?

Claude Fable 5 significantly outperforms across most benchmarks. GLM-5 is made by Zhipu AI 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 GLM-5 compare to Claude Fable 5 in benchmarks?

GLM-5 scores t2-bench: 89.7%, SWE-Bench Verified: 77.8%, BrowseComp: 75.9%, MCP Atlas: 67.8%, Terminal-Bench 2.0: 56.2%. 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 GLM-5 cheaper than Claude Fable 5?

GLM-5 is 10.0x cheaper for input tokens. GLM-5 costs $1.00/M input and $3.20/M output via friendli. Claude Fable 5 costs $10.00/M input and $50.00/M output via anthropic.

What are the context window sizes for GLM-5 and Claude Fable 5?

GLM-5 supports 200K 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 GLM-5 and Claude Fable 5?

Key differences include context window (200K vs 1.0M), input pricing ($1.00 vs $10.00/M), multimodal support (no vs yes), licensing (MIT vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes GLM-5 and Claude Fable 5?

GLM-5 is developed by Zhipu AI and Claude Fable 5 is developed by Anthropic.

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