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Claude Haiku 5.5 vs GLM-5.3-Flash

Claude Haiku 5.5 and GLM-5.3-Flash are closely matched at 50.3 and 49.0 on the LLM Stats Score. Claude Haiku 5.5 is 1.2x cheaper per token.

Anthropic · Zhipu AI · Updated for 2026

Which is better?

Claude Haiku 5.5 and GLM-5.3-Flash are closely matched on the overall LLM Stats Score at 50.3 and 49.0.

The models split the 2 individual benchmarks reported for both models evenly.

On price, Claude Haiku 5.5 is roughly 1.2x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

GLM-5.3-Flash also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Claude Haiku 5.5

  • cost matters — it's about 1.2x cheaper per token
  • you want the most recent training data — it shipped Oct 2026

Choose GLM-5.3-Flash

  • you process long inputs — it offers a 1,048,576 token context window
  • you need open weights you can self-host or fine-tune

At a glance

The differences that matter most.

Claude Haiku 5.5
Anthropic
GLM-5.3-Flash
Zhipu AI
Core performance indexes
LLM Stats Score
50.3
#18
49.0
#23
Reasoning
47.4
#26
48.0
#22
Coding
40.7
#13
33.0
#43
Agents
33.7
#27
35.5
#21
Cost, coverage & limits
Benchmark wins
1 of 2
1 of 2
Input price
$0.10 / M
$0.15 / M
Output price
$0.50 / M
$0.50 / M
Context window
1,000,000
1,048,576

Capability indexes

Additional strengths measured across groups of related public benchmarks

3 shared
Index
Claude Haiku 5.5
GLM-5.3-Flash
Vision
30.5#32
30.9#31
Tool use
20.8#57
28.5#17
Multimodal
31.6#25
30.6#32
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

36 reported for Claude Haiku 5.5 · 15 for GLM-5.3-Flash

2 shared

Claude Haiku 5.5 outperforms in 1 benchmarks (Chartography), while GLM-5.3-Flash is better at 1 benchmark (OfficeQA Pro).

Both models are evenly matched across the benchmarks.

Wed Oct 07 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

Claude Haiku 5.5 costs less

For input processing, Claude Haiku 5.5 ($0.10/1M tokens) is 1.5x cheaper than GLM-5.3-Flash ($0.15/1M tokens).

For output processing, Claude Haiku 5.5 ($0.50/1M tokens) costs the same as GLM-5.3-Flash ($0.50/1M tokens).

In conclusion, GLM-5.3-Flash is more expensive than Claude Haiku 5.5.*

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

Lowest available price from all providers
Wed Oct 07 2026 • llm-stats.com
Anthropic
Claude Haiku 5.5
Input tokens$0.10
Output tokens$0.50
Best providerAnthropic
Zhipu AI
GLM-5.3-Flash
Input tokens$0.15
Output tokens$0.50
Best providerDeepinfra
Notice missing or incorrect data?

Context Window

Maximum input and output token capacity

GLM-5.3-Flash accepts 1,048,576 input tokens compared to Claude Haiku 5.5's 1,000,000 tokens. GLM-5.3-Flash can generate longer responses up to 1,048,576 tokens, while Claude Haiku 5.5 is limited to 128,000 tokens.

Anthropic
Claude Haiku 5.5
Input1,000,000 tokens
Output128,000 tokens
Zhipu AI
GLM-5.3-Flash
Input1,048,576 tokens
Output1,048,576 tokens
Wed Oct 07 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Claude Haiku 5.5 and GLM-5.3-Flash support multimodal inputs.

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

Claude Haiku 5.5

Text
Images
Audio
Video

GLM-5.3-Flash

Text
Images
Audio
Video

License

Usage and distribution terms

Claude Haiku 5.5 is licensed under a proprietary license, while GLM-5.3-Flash uses MIT.

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

Claude Haiku 5.5

Proprietary

Closed source

GLM-5.3-Flash

MIT

Open weights

Release Timeline

When each model was launched

Claude Haiku 5.5 was released on 2026-10-07, while GLM-5.3-Flash was released on 2026-08-26.

Claude Haiku 5.5 is 1 month newer than GLM-5.3-Flash.

Claude Haiku 5.5

Oct 7, 2026

0 days ago

1mo newer
GLM-5.3-Flash

Aug 26, 2026

1 months ago

Knowledge Cutoff

When training data ends

Claude Haiku 5.5 has a documented knowledge cutoff of 2026-06-01, while GLM-5.3-Flash's cutoff date is not specified.

We can confirm Claude Haiku 5.5's training data extends to 2026-06-01, but cannot make a direct comparison without GLM-5.3-Flash's cutoff date.

Claude Haiku 5.5

Jun 2026

GLM-5.3-Flash

—

Provider Availability

Claude Haiku 5.5 is available from Anthropic. GLM-5.3-Flash is available from DeepInfra, FriendliAI, Novita, ZAI.

Claude Haiku 5.5

anthropic logo
Anthropic
Input Price:Input: $0.10/1MOutput Price:Output: $0.50/1M

GLM-5.3-Flash

deepinfra logo
Deepinfra
Input Price:Input: $0.15/1MOutput Price:Output: $0.50/1M
friendli logo
FriendliAI
Input Price:Input: $0.15/1MOutput Price:Output: $0.50/1M
novita logo
Novita
Input Price:Input: $0.15/1MOutput Price:Output: $0.50/1M
z logo
Unknown Organization
Input Price:Input: $0.15/1MOutput Price:Output: $0.50/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Claude Haiku 5.5 and GLM-5.3-Flash side-by-side, then vote on the output you prefer.

Claude Haiku 5.5
✓ Preferred
GLM-5.3-Flash
Open in Playground

FAQ

Common questions about Claude Haiku 5.5 vs GLM-5.3-Flash.

Which is better, Claude Haiku 5.5 or GLM-5.3-Flash?

Claude Haiku 5.5 and GLM-5.3-Flash are closely matched on the LLM Stats Score at 50.3 and 49.0. Claude Haiku 5.5 is made by Anthropic and GLM-5.3-Flash is made by Zhipu AI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Claude Haiku 5.5 compare to GLM-5.3-Flash in benchmarks?

Claude Haiku 5.5 scores Global-MMLU: 87.8%, MILU: 87.6%, BenchCAD (with Python tool): 87.0%, Chartography: 86.2%, SWE-bench Multilingual: 83.7%. GLM-5.3-Flash scores CharXiv-R: 89.4%, Terminal-Bench 2.1: 84.3%, MMVU: 80.5%, Toolathlon: 78.4%, Chartography: 78.0%.

Is Claude Haiku 5.5 cheaper than GLM-5.3-Flash?

Claude Haiku 5.5 is 1.5x cheaper for input tokens. Claude Haiku 5.5 costs $0.10/M input and $0.50/M output via anthropic. GLM-5.3-Flash costs $0.15/M input and $0.50/M output via deepinfra.

What are the context window sizes for Claude Haiku 5.5 and GLM-5.3-Flash?

Claude Haiku 5.5 supports 1.0M tokens and GLM-5.3-Flash 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 Haiku 5.5 and GLM-5.3-Flash?

Key differences include LLM Stats Score (50.3 vs 49.0), context window (1.0M vs 1.0M), input pricing ($0.10 vs $0.15/M), licensing (Proprietary vs MIT). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Haiku 5.5 and GLM-5.3-Flash?

Claude Haiku 5.5 is developed by Anthropic and GLM-5.3-Flash is developed by Zhipu AI.

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