GLM 5.3 vs Hy3 preview
API pricing, context window and capabilities for GLM 5.3 and Hy3 preview, side by side. Prices are the cheapest listed serving route per 1M tokens, from LiteLLM and OpenRouter.
Verdict
computed from the published numbersGLM 5.3 wins on intelligence and on context window. Benchmark data is unavailable for one or both models.
Price
Tied
Terminal-Bench
Not called
Intelligence
GLM 5.3
Context window
GLM 5.3
Key takeaways
who wins on what, from the published numbersGLM 5.3 wins
- Cheaper input ($0.079 vs $0.18 /1M)
- Larger context window (1M vs 262K)
- Higher max output (1M vs 236K)
- More serving providers (16 vs 1)
- Supports vision
- Supports structured output
Hy3 preview wins
- Cheaper output ($3.08 vs $0.60 /1M)
Cheaper overall
Hy3 preview
$0.18 + $0.60 /1M
Larger context
GLM 5.3
1M
More providers
GLM 5.3
16 providers
Pricing & specs
cheapest listed route · per 1M tokensOn-demand listed rates, OpenRouter routed quotes and Vercel reseller quotes. Enterprise commitments can be materially lower. An OpenRouter routed quote is the price of whichever upstream provider OpenRouter prefers today, so it moves day to day.
| GLM 5.3 | Hy3 preview | |
|---|---|---|
| Input $/1M | $0.079OpenRouter routed quote best | $0.18OpenRouter routed quote |
| Output $/1M | $3.08via Sail | $0.60OpenRouter routed quote best |
| Context window | 1M best | 262K |
| Max output | 1M best | 236K |
| Serving providers | 16 best | 1 |
| Date | Released Aug 14, 2026 | Released Apr 20, 2026 |
Benchmarks
Benchmark scores, side by side| GLM 5.3 | Hy3 preview | |
|---|---|---|
| Intelligence | 44.8 best | 22.7 |
| Terminal-Bench | 84% | Not available |
| GPQA Diamond | 92% best | 87% |
| Output speed | 62 t/s | Not available |
| Latency (TTFT) | 3.50s | Not available |
Cost calculator
choose a serving route for each sideInput tokens / month
Output tokens / month
GLM 5.3
via OpenRouter
$5.20
Hy3 preview
via OpenRouter
$1.50
Capabilities
feature support, side by side| Feature | GLM 5.3 | Hy3 preview |
|---|---|---|
| Vision | ✓ | — |
| Tool use | ✓ | ✓ |
| Reasoning | ✓ | ✓ |
| Audio | — | — |
| Prompt caching | ✓ | ✓ |
| Structured output | ✓ | — |
| Web search | — | — |
Related comparisons
Frequently asked questions
Which is cheaper, GLM 5.3 or Hy3 preview?
GLM 5.3 is cheaper for input ($0.079 vs $0.18 per 1M tokens) as an OpenRouter routed quote. Hy3 preview is cheaper for output ($3.08 vs $0.60 per 1M tokens) as an OpenRouter routed quote.
What is the context window difference between GLM 5.3 and Hy3 preview?
GLM 5.3 has a 1M-token context window and Hy3 preview has 262K tokens, so GLM 5.3 can take a larger prompt.
How do GLM 5.3 and Hy3 preview compare on benchmarks?
On the tracked benchmarks, GLM 5.3 leads on intelligence.
Listed prices from LiteLLM, OpenRouter and Vercel · last checked Oct 14, 2026
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