AI model comparison
Claude Sonnet 5 vs GLM 5.2
Pricing, context window, benchmarks, and features compared side by side. Or skip the guesswork and send one prompt to both.
Anthropic
Claude Sonnet 5
Sonnet 5 is Anthropic's most capable Sonnet-class model, with frontier performance across coding, agents, and professional work.
- Input / 1M
- $2
- Output / 1M
- $10
- Context
- 1M
Z.ai
GLM 5.2
GLM 5.2 is a large-scale reasoning model from Z.ai.
- Input / 1M
- $0.06
- Output / 1M
- $8
- Context
- 1.05M
At a glance
Quick verdict
How the two models stack up on the things people ask about most.
Lower price
GLM 5.2
2.2x cheaper for a typical chat
Higher intelligence score
Claude Sonnet 5
38.2 vs 33.7 on Artificial Analysis
Larger context window
GLM 5.2
1.05M vs 1M tokens
Newer release
Claude Sonnet 5
Released June 30, 2026
Benchmarks
Benchmark scores
Independent scores from Artificial Analysis. Higher is better.
Intelligence index
Claude Sonnet 538.2Coding index
Claude Sonnet 571.5Agentic index
Claude Sonnet 543.6Pricing
Claude Sonnet 5 vs GLM 5.2 API pricing
Per-token API rates. Cheaper option highlighted.
| Metric | Claude Sonnet 5 | |
|---|---|---|
| Input tokensPer 1M tokens | $2 | $0.06 |
| Output tokensPer 1M tokens | $10 | $8 |
| Cached input (read)Per 1M tokens | $0.20 | $0.06 |
| Cache writePer 1M tokens | $2.50 | Not available |
| 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 Sonnet 5$9Coding task
30K in, 4K out
Claude Sonnet 5$100$46 cachedLong document summary
150K in, 2K out
Claude Sonnet 5$320$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 Sonnet 5 | |
|---|---|---|
| Context window | 1M tokens | 1.05M tokens |
| Max output | 128K tokens | 944K tokens |
| Input types | File, Image, Text | Text |
| Output types | Text | Text |
| Reasoning effort levels | Max, Extra high, High, Medium, Low | Extra high, High |
| Default reasoning effort | High | High |
| Release date | June 30, 2026 | June 16, 2026 |
Features
Supported features
API features available for each model.
| Metric | Claude Sonnet 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 Sonnet 5View full model details- Claude Sonnet 5 vs DeepSeek V4.1 Flash
- Claude Sonnet 5 vs Gemini 3.8 Flash
- Claude Sonnet 5 vs Kimi K3
- Claude Sonnet 5 vs GPT-5.6 Terra
- Claude Sonnet 5 vs Claude Opus 4.8
- Claude Sonnet 5 vs Claude Opus 4.7
- Claude Sonnet 5 vs Qwen3.8 2.4T A95B
- Claude Sonnet 5 vs Gemini 3.7 Flash
- Claude Sonnet 5 vs Muse Spark 1.2
- Claude Sonnet 5 vs GPT-5.4
- Claude Sonnet 5 vs Grok 4.5
- Claude Sonnet 5 vs GPT-5.5
- Claude Sonnet 5 vs Gemini 3.5 Flash
- Claude Sonnet 5 vs GPT-5.3-Codex
- Claude Sonnet 5 vs Claude Opus 4.6
- Claude Sonnet 5 vs Claude Sonnet 4.6
- Claude Sonnet 5 vs Claude Opus 4.5
- GLM 5.2 vs DeepSeek V4.1 Flash
- GLM 5.2 vs DeepSeek V4 Flash 0731
- GLM 5.2 vs GLM 5.3
- GLM 5.2 vs DeepSeek V4 Pro 0813
- GLM 5.2 vs Qwen3.8 27B
- GLM 5.2 vs Grok 4.5
- GLM 5.2 vs Claude Sonnet 4.6
- GLM 5.2 vs Gemini 3.6 Flash
- GLM 5.2 vs Muse Spark 1.1
- GLM 5.2 vs Gemini 3.5 Flash
- GLM 5.2 vs GPT-5.3-Codex
- GLM 5.2 vs Gemini 3.1 Pro Preview
- GLM 5.2 vs Claude Opus 4.6
- GLM 5.2 vs GPT-5.2
- GLM 5.2 vs Qwen3.7 Max
- GLM 5.2 vs Claude Opus 4.5
- GLM 5.2 vs GPT-5.2-Codex
Our take
GLM 5.2 is 2.2x cheaper for a typical chat. Claude Sonnet 5 scores higher on the Artificial Analysis Intelligence Index (38.2 vs 33.7). GLM 5.2 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 Sonnet 5 or GLM 5.2 cheaper?
GLM 5.2 is cheaper for a typical chat (2K input tokens and 500 output tokens). GLM 5.2 costs $0.06 per 1M input tokens and $8 per 1M output tokens, while Claude Sonnet 5 costs $2 per 1M input tokens and $10 per 1M output tokens.
Which has a bigger context window, Claude Sonnet 5 or GLM 5.2?
GLM 5.2 supports up to 1.05M tokens of context, compared with 1M for Claude Sonnet 5.
Is Claude Sonnet 5 smarter than GLM 5.2?
On the Artificial Analysis Intelligence Index, Claude Sonnet 5 scores 38.2 and GLM 5.2 scores 33.7, putting Claude Sonnet 5 ahead. Benchmarks don't capture everything, so the best test is running your own prompts through both.
Can I use Claude Sonnet 5 and GLM 5.2 at the same time?
Yes. Shortcut Chat sends one prompt to multiple models at once, so you can see Claude Sonnet 5 and GLM 5.2 answer side by side and keep the better response.
Why choose? Ask both.
Send one prompt to Claude Sonnet 5 and GLM 5.2 at the same time. Compare the answers side by side and keep the best one.