GLM-5.2 vs Claude Sonnet 5
Side-by-side comparison of API pricing, specs, benchmarks, and capabilities
|
by Z.AI
2 providers:
Together $1.40/$4.40
Z.AI $1.40/$4.40
|
by Anthropic
|
|
|---|---|---|
| Overview | ||
| Status | Current flagship Open weights | Current mid tier |
| Released | Jun 13, 2026 | Jun 30, 2026 |
| Pricing per million tokens | ||
| Input | $1.40/Mtok | $2.00/Mtok |
| Output | $4.40/Mtok | $10.00/Mtok |
| Blended avg | $2.90/Mtok | $6.00/Mtok |
| Cached input | $0.260/Mtok | $0.200/Mtok |
| Specifications | ||
| Context window | 1M tokens | 1M tokens |
| Parameters | Proprietary | Proprietary |
| Speed (TPS) | — | — |
| Modalities | ||
| Input |
text
|
textimage
|
| Benchmarks from Vellum LLM Leaderboard | ||
| Avg benchmark score | ||
| Perf / dollar | ||
| GPQA Diamond | 68 | — |
| SWE-Bench | 45 | — |
| HumanEval | 84 | — |
| MATH 500 | 76 | — |
| Providers | ||
| Available from |
Together — $1.40/$4.40/Mtok
Z.AI — $1.40/$4.40/Mtok
|
Anthropic — $2.00/$10.00/Mtok
|
Cost at scale — 1M tokens (50/50 input/output)
| Volume | GLM-5.2 | Claude Sonnet 5 | Savings |
|---|---|---|---|
| 1M tokens | $2.9 | $6 | $3.1 (51.7%) |
| 10M tokens | $29 | $60 | $31 (51.7%) |
| 100M tokens | $290 | $600 | $310 (51.7%) |
| 1000M tokens | $2900 | $6000 | $3100 (51.7%) |
Summary
GLM-5.2 by Z.AI costs $1.40/Mtok input and $4.40/Mtok output, with a 1M-token context window. It supports text input and is available from 2 providers.
Claude Sonnet 5 by Anthropic costs $2.00/Mtok input and $10.00/Mtok output, with a 1M-token context window. It supports text, image input.
On a blended cost basis, GLM-5.2 is 106.9% cheaper than Claude Sonnet 5.
On benchmarks, Claude Sonnet 5 scores higher ( vs ) on average. In terms of value, Claude Sonnet 5 has better performance per dollar ( vs ).
Note: Pricing is per million tokens. Actual costs vary with usage patterns, prompt caching, and batch discounts. Always verify against official provider pricing pages.