Claude Opus 5 vs GLM-5.2: Specs & Benchmark Comparison
Claude Opus 5 is developed by Anthropic, while GLM-5.2 comes from Zhipu AI. GLM-5.2 was released in June 2026, and Claude Opus 5 followed a month later in July 2026. GLM-5.2 has a published size of about 753 billion parameters; Anthropic has not disclosed the parameter count of Claude Opus 5.
The two models share 3 published benchmarks. Claude Opus 5 leads on 3 of them. The widest gaps are on FrontierCode 1.1, where Claude Opus 5 scores 53.4% against 24.5%; DeepSWE 1.1, where Claude Opus 5 scores 68.8% against 44.0%. Averaged across everything we track, Claude Opus 5 sits at 55.0% and GLM-5.2 at 60.9%.
GLM-5.2 is the cheaper API at $1.40 per million input tokens and $4.40 per million output tokens, roughly 4 times cheaper than Claude Opus 5 at $5 and $25. Both accept a context window of about 1M tokens. Claude Opus 5 accepts text and images as input, while GLM-5.2 accepts text.
| Characteristic | Claude Opus 5 | GLM-5.2 |
|---|---|---|
| Company | Anthropic | Zhipu AI |
| Release Date | July 24, 2026 | June 16, 2026 |
| Parameters | — | 753B |
| Multimodal | Yes | No |
| Context (input) | 1.0M | 1.0M |
| Context (output) | 128K | 131K |
| Input Price / 1M | $5.00 | $1.40 |
| Output Price / 1M | $25.00 | $4.40 |
| Average Score | 55.0% | 60.9% |
| Benchmarks | ||
| FrontierCode 1.1 | 53.4% | 24.5% |
| DeepSWE 1.1 | 68.8% | 44.0% |
| Humanity's Last Exam | 64.7% | 54.7% |
Visual Benchmark Comparison
Verdict
GLM-5.2 leads in 2 out of 4 comparison categories.
Both models show comparable average scores: Claude Opus 5 — 0.5, GLM-5.2 — 0.6.
GLM-5.2 is 5.2x cheaper: input $1.40/1M vs $5.00/1M tokens.
GLM-5.2 supports a larger context: 1M vs 1M tokens.
Claude Opus 5 is newer: released 7/24/2026 vs 6/16/2026.
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Frequently Asked Questions
Which is better for coding — Claude Opus 5 or GLM-5.2?
Which model is cheaper — Claude Opus 5 or GLM-5.2?
Which has a larger context window — Claude Opus 5 or GLM-5.2?
The Claude Opus 5 and GLM-5.2 comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Claude Opus 5 or GLM-5.2 page. See also the complete list of AI model comparisons.