AI model comparison
Claude Haiku 5.5 vs GLM 5.3 Flash
Pricing, context window, benchmarks, and features compared side by side. Or skip the guesswork and send one prompt to both.
Anthropic
Claude Haiku 5.5
Claude Haiku 5.5 is Anthropic's small, fast model for high-volume, cost-sensitive work such as summarization, subagents, and browser use.
- Input / 1M
- $0.10
- Output / 1M
- $0.50
- Context
- 1M
Z.ai
GLM 5.3 Flash
GLM-5.3-Flash is a native multimodal model from Z.ai. It is suited for efficient coding and long-horizon agent tasks.
- Input / 1M
- $0.15
- Output / 1M
- $0.50
- Context
- 1.05M
At a glance
Quick verdict
How the two models stack up on the things people ask about most.
Lower price
Claude Haiku 5.5
1.2x cheaper for a typical chat
Higher intelligence score
Claude Haiku 5.5
43.4 vs 41.8 on Artificial Analysis
Larger context window
GLM 5.3 Flash
1.05M vs 1M tokens
Newer release
Claude Haiku 5.5
Released October 7, 2026
Benchmarks
Benchmark scores
Independent scores from Artificial Analysis. Higher is better.
Intelligence index
Claude Haiku 5.543.4Coding index
Claude Haiku 5.5Not availableAgentic index
Claude Haiku 5.5Not availablePricing
Claude Haiku 5.5 vs GLM 5.3 Flash API pricing
Per-token API rates. Cheaper option highlighted.
| Metric | Claude Haiku 5.5 | |
|---|---|---|
| Input tokensPer 1M tokens | $0.10 | $0.15 |
| Output tokensPer 1M tokens | $0.50 | $0.50 |
| Cached input (read)Per 1M tokens | $0.01 | $0.03 |
| Cache writePer 1M tokens | $0.13 | Not available |
| Long-context pricingPer 1M tokens, for very long prompts | $0.50 in / $2.50 out above 100K | Same rate at any length |
| Web searchPer request | $0.01 | Not available |
What it costs in practice
Estimated cost per 1,000 requests at standard rates. Coding and long-document figures also show the cost when the input is already cached.
Chat message
2K in, 500 out
Claude Haiku 5.5$0.45Coding task
30K in, 4K out
Claude Haiku 5.5$5$2.30 cachedLong document summary
150K in, 2K out
Claude Haiku 5.5$16$2.50 cachedSpecs
Context window and capabilities
How much each model can read, how much it can write, and what it accepts as input.
| Metric | Claude Haiku 5.5 | |
|---|---|---|
| Context window | 1M tokens | 1.05M tokens |
| Max output | 128K tokens | 944K tokens |
| Input types | File, Image, Text | Image, Text, Video |
| Output types | Text | Text |
| Reasoning effort levels | Max, Extra high, High, Medium, Low | Max, High, Low |
| Default reasoning effort | Medium | Max |
| Release date | October 7, 2026 | August 26, 2026 |
Features
Supported features
API features available for each model.
| Metric | Claude Haiku 5.5 | |
|---|---|---|
| Tool calling | Supported | Supported |
| Structured outputs | Supported | Supported |
| JSON mode | Supported | Supported |
| Reasoning | Supported | Supported |
| Temperature | Not supported | Supported |
| Stop sequences | Supported | Supported |
| Deterministic seed | Not supported | Supported |
| Verbosity control | Supported | Not supported |
Keep exploring
More on these models
Other head-to-heads, the full model page, and the alternatives list for each model.
Claude Haiku 5.5View full model details- Claude Haiku 5.5 vs MiMo-V2.6-Pro
- Claude Haiku 5.5 vs GLM 5.3
- Claude Haiku 5.5 vs Kimi K3
- Claude Haiku 5.5 vs Gemini 3.8 Flash
- Claude Haiku 5.5 vs DeepSeek V4.1 Flash
- Claude Haiku 5.5 vs MiMo-V2.6-Flash
- Claude Haiku 5.5 vs GPT-6 Luna
- Claude Haiku 5.5 vs DeepSeek V4 Flash 0731
- Claude Haiku 5.5 vs GPT-5.6 Luna
- Claude Haiku 5.5 vs GPT-6 Luna Pro
- GLM 5.3 Flash vs DeepSeek V4.1 Flash
- GLM 5.3 Flash vs MiMo-V2.6-Flash
- GLM 5.3 Flash vs Hy4 preview
- GLM 5.3 Flash vs GPT-6 Luna
- GLM 5.3 Flash vs DeepSeek V4 Flash 0731
- GLM 5.3 Flash vs Claude Opus 5.5
- GLM 5.3 Flash vs GLM 5.3
- GLM 5.3 Flash vs DeepSeek V4 Flash 0423
- GLM 5.3 Flash vs Step 5 Preview
- GLM 5.3 Flash vs Gemini 3.8 Flash
- GLM 5.3 Flash vs Hy3
- GLM 5.3 Flash vs GPT-5.6 Luna
- GLM 5.3 Flash vs GPT-6.1 Sol
- GLM 5.3 Flash vs Muse Spark 1.3 Contributor
- GLM 5.3 Flash vs Claude Sonnet 5.5
- GLM 5.3 Flash vs Claude Fable 5.1
- GLM 5.3 Flash vs GPT-6 Astra
- GLM 5.3 Flash vs MiMo-V2.6-Pro
- GLM 5.3 Flash vs Claude Opus 5
- GLM 5.3 Flash vs DeepSeek V4 Pro 0813
- GLM 5.3 Flash vs Ling 3.1 Flash
- GLM 5.3 Flash vs GPT-6 Luna Pro
- GLM 5.3 Flash vs Gemini 3.7 Flash
- GLM 5.3 Flash vs Muse Spark 1.2
- GLM 5.3 Flash vs Qwen3.8 Flash
- GLM 5.3 Flash vs Qwen3.7 Flash
- GLM 5.3 Flash vs DeepSeek V4 Flash Vision Exp
- GLM 5.3 Flash vs Mistral Nemo
- GLM 5.3 Flash vs GLM 5.3 FlashX
- GLM 5.3 Flash vs GPT-5.6 Luna Pro
Our take
Claude Haiku 5.5 is 1.2x cheaper for a typical chat. Claude Haiku 5.5 scores higher on the Artificial Analysis Intelligence Index (43.4 vs 41.8). GLM 5.3 Flash has the larger context window (1.05M vs 1M tokens). The right pick depends on your workload, so the quickest way to settle it is to send the same prompt to both and compare.
FAQ
Frequently asked questions
Is Claude Haiku 5.5 or GLM 5.3 Flash cheaper?
Claude Haiku 5.5 is cheaper for a typical chat (2K input tokens and 500 output tokens). Claude Haiku 5.5 costs $0.10 per 1M input tokens and $0.50 per 1M output tokens, while GLM 5.3 Flash costs $0.15 per 1M input tokens and $0.50 per 1M output tokens.
Which has a bigger context window, Claude Haiku 5.5 or GLM 5.3 Flash?
GLM 5.3 Flash supports up to 1.05M tokens of context, compared with 1M for Claude Haiku 5.5.
Is Claude Haiku 5.5 smarter than GLM 5.3 Flash?
On the Artificial Analysis Intelligence Index, Claude Haiku 5.5 scores 43.4 and GLM 5.3 Flash scores 41.8, putting Claude Haiku 5.5 ahead. Benchmarks don't capture everything, so the best test is running your own prompts through both.
Can I use Claude Haiku 5.5 and GLM 5.3 Flash at the same time?
Yes. Shortcut Chat sends one prompt to multiple models at once, so you can see Claude Haiku 5.5 and GLM 5.3 Flash answer side by side and keep the better response.
Why choose? Ask both.
Send one prompt to Claude Haiku 5.5 and GLM 5.3 Flash at the same time. Compare the answers side by side and keep the best one.