GLM 5.3 Flash vs Inkling
API pricing, context window and capabilities for GLM 5.3 Flash and Inkling, 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 Flash wins on price, on Terminal-Bench and on intelligence.
Price
GLM 5.3 Flash
Terminal-Bench
GLM 5.3 Flash
Intelligence
GLM 5.3 Flash
Context window
Tied
Key takeaways
who wins on what, from the published numbersGLM 5.3 Flash wins
- Cheaper input ($0.11 vs $0.95 /1M)
- Cheaper output ($0.35 vs $4.05 /1M)
- Higher max output (1M vs 33K)
- More serving providers (13 vs 6)
Inkling wins
No clear edge on the tracked metrics.
Cheaper overall
GLM 5.3 Flash
$0.11 + $0.35 /1M
Larger context
Tied
More providers
GLM 5.3 Flash
13 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.
| GLM 5.3 Flash | Inkling | |
|---|---|---|
| Input $/1M | $0.11via Sail best | $0.95via DeepInfra |
| Output $/1M | $0.35via Sail best | $4.05via Baseten |
| Context window | 1M | 1M |
| Max output | 1M best | 33K |
| Serving providers | 13 best | 6 |
| Date | Released Aug 26, 2026 | Released Jul 16, 2026 |
Benchmarks
Benchmark scores, side by side| GLM 5.3 Flash | Inkling | |
|---|---|---|
| Intelligence | 41.8 best | 25.0 |
| Terminal-Bench | 84% best | 55% |
| GPQA Diamond | 91% best | 87% |
| Output speed | 67 t/s | 186 t/s best |
| Latency (TTFT) | 2.80s | 1.91s best |
Cost calculator
choose a serving route for each sideInput tokens / month
Output tokens / month
GLM 5.3 Flash
via Sail
$0.90
Inkling
via DeepInfra
$8.80
Capabilities
feature support, side by side| Feature | GLM 5.3 Flash | Inkling |
|---|---|---|
| Vision | ✓ | ✓ |
| Tool use | ✓ | ✓ |
| Reasoning | ✓ | ✓ |
| Audio | — | — |
| Prompt caching | ✓ | ✓ |
| Structured output | ✓ | ✓ |
| Web search | — | — |
Related comparisons
Frequently asked questions
Which is cheaper, GLM 5.3 Flash or Inkling?
GLM 5.3 Flash is cheaper for input ($0.11 vs $0.95 per 1M tokens) from Sail. GLM 5.3 Flash is cheaper for output ($0.35 vs $4.05 per 1M tokens) from Sail.
What is the context window difference between GLM 5.3 Flash and Inkling?
Both GLM 5.3 Flash and Inkling have about a 1M-token context window.
How do GLM 5.3 Flash and Inkling compare on benchmarks?
On the tracked benchmarks, GLM 5.3 Flash leads on Terminal-Bench, and GLM 5.3 Flash leads on intelligence.
Listed prices from LiteLLM, OpenRouter and Vercel · last checked Oct 14, 2026
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