Claude Sonnet 5 vs GLM 5.2
API pricing, context window and capabilities for Claude Sonnet 5 and GLM 5.2, side by side. Prices are the cheapest serving route per 1M tokens, verified against LiteLLM and OpenRouter.
Verdict
computed from the published numbersClaude Sonnet 5 wins on coding and on intelligence. GLM 5.2 wins on price.
Price
GLM 5.2
Coding
Claude Sonnet 5
Intelligence
Claude Sonnet 5
Context window
Tied
Key takeaways
who wins on what, from the published numbersClaude Sonnet 5 wins
- Supports vision
GLM 5.2 wins
- Cheaper input ($2.00 vs $0.61 /1M)
- Cheaper output ($10.00 vs $1.98 /1M)
- Higher max output (128K vs 1M)
- More serving providers (7 vs 10)
Cheaper overall
GLM 5.2
$0.61 + $1.98 /1M
Larger context
Tied
More providers
GLM 5.2
10 providers
Pricing & specs
cheapest serving route · per 1M tokens| Claude Sonnet 5 | GLM 5.2 | |
|---|---|---|
| Input $/1M | $2.00 | $0.61 best |
| Output $/1M | $10.00 | $1.98 best |
| Context window | 1M | 1M |
| Max output | 128K | 1M best |
| Serving providers | 7 | 10 best |
| Released | 2026-06-30 | 2026-06-13 |
Benchmarks
Artificial Analysis indices, side by side| Claude Sonnet 5 | GLM 5.2 | |
|---|---|---|
| Intelligence | 55.3 best | 52.6 |
| Coding | 71.5 best | 68.8 |
| GPQA Diamond | 91% best | 89% |
| Output speed | 86 t/s best | 70 t/s |
| Latency (TTFT) | 230.25s | 1.56s best |
Cost calculator
choose a serving route for each sideInput tokens / month
Output tokens / month
Claude Sonnet 5
via Azure
$20
GLM 5.2
via Scx AI
$5.03
Capabilities
feature support, side by side| Feature | Claude Sonnet 5 | GLM 5.2 |
|---|---|---|
| Vision | ✓ | — |
| Tool use | ✓ | ✓ |
| Reasoning | ✓ | ✓ |
| Audio | — | — |
| Prompt caching | ✓ | ✓ |
| Structured output | ✓ | ✓ |
| Web search | — | — |
Related comparisons
Frequently asked questions
Which is cheaper, Claude Sonnet 5 or GLM 5.2?
GLM 5.2 is cheaper for input ($2.00 vs $0.61 per 1M tokens). GLM 5.2 is cheaper for output ($10.00 vs $1.98 per 1M tokens).
What is the context window difference between Claude Sonnet 5 and GLM 5.2?
Both Claude Sonnet 5 and GLM 5.2 have about a 1M-token context window.
How do Claude Sonnet 5 and GLM 5.2 compare on benchmarks?
On the tracked Artificial Analysis indices, Claude Sonnet 5 leads on coding, and Claude Sonnet 5 leads on intelligence.
Pricing verified against LiteLLM + OpenRouter + provider pages · refreshed daily
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