Verdict
computed from the published numbersGLM 5.3 wins on price and on intelligence. Kimi K3 wins on Terminal-Bench.
Price
GLM 5.3
Terminal-Bench
Kimi K3
Intelligence
GLM 5.3
Context window
Tied
Key takeaways
who wins on what, from the published numbersGLM 5.3 wins
- Cheaper input ($0.079 vs $0.70 /1M)
- Cheaper output ($3.08 vs $12.50 /1M)
- More serving providers (16 vs 14)
Kimi K3 wins
No clear edge on the tracked metrics.
Cheaper overall
GLM 5.3
$0.079 + $3.08 /1M
Larger context
Tied
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 | Kimi K3 | |
|---|---|---|
| Input $/1M | $0.079OpenRouter routed quote best | $0.70OpenRouter routed quote |
| Output $/1M | $3.08via Sail best | $12.50via Sail |
| Context window | 1M | 1M |
| Max output | 1M | 1M |
| Serving providers | 16 best | 14 |
| Date | Released Aug 14, 2026 | Released Jul 16, 2026 |
Benchmarks
Benchmark scores, side by side| GLM 5.3 | Kimi K3 | |
|---|---|---|
| Intelligence | 44.8 best | 43.6 |
| Terminal-Bench | 84% | 85% best |
| GPQA Diamond | 92% | 94% best |
| Output speed | 62 t/s best | 45 t/s |
| Latency (TTFT) | 3.50s | 3.17s best |
Cost calculator
choose a serving route for each sideInput tokens / month
Output tokens / month
GLM 5.3
via OpenRouter
$5.20
Kimi K3
via OpenRouter
$19
Capabilities
feature support, side by side| Feature | GLM 5.3 | Kimi K3 |
|---|---|---|
| Vision | ✓ | ✓ |
| Tool use | ✓ | ✓ |
| Reasoning | ✓ | ✓ |
| Audio | — | — |
| Prompt caching | ✓ | ✓ |
| Structured output | ✓ | ✓ |
| Web search | — | — |
Related comparisons
Frequently asked questions
Which is cheaper, GLM 5.3 or Kimi K3?
GLM 5.3 is cheaper for input ($0.079 vs $0.70 per 1M tokens) as an OpenRouter routed quote. GLM 5.3 is cheaper for output ($3.08 vs $12.50 per 1M tokens) from Sail.
What is the context window difference between GLM 5.3 and Kimi K3?
Both GLM 5.3 and Kimi K3 have about a 1M-token context window.
How do GLM 5.3 and Kimi K3 compare on benchmarks?
On the tracked benchmarks, Kimi K3 leads on Terminal-Bench, and GLM 5.3 leads on intelligence.
Listed prices from LiteLLM, OpenRouter and Vercel · last checked Oct 14, 2026
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