GLM 5.3 Flash vs Mistral Medium 3.5
API pricing, context window and capabilities for GLM 5.3 Flash and Mistral Medium 3.5, 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, on intelligence and on context window.
Price
GLM 5.3 Flash
Terminal-Bench
GLM 5.3 Flash
Intelligence
GLM 5.3 Flash
Context window
GLM 5.3 Flash
Key takeaways
who wins on what, from the published numbersGLM 5.3 Flash wins
- Cheaper input ($0.11 vs $1.50 /1M)
- Cheaper output ($0.35 vs $7.50 /1M)
- Larger context window (1M vs 262K)
- Higher max output (1M vs 262K)
- More serving providers (13 vs 4)
- Supports prompt caching
Mistral Medium 3.5 wins
No clear edge on the tracked metrics.
Cheaper overall
GLM 5.3 Flash
$0.11 + $0.35 /1M
Larger context
GLM 5.3 Flash
1M
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 | Mistral Medium 3.5 | |
|---|---|---|
| Input $/1M | $0.11via Sail best | $1.50via Mistral |
| Output $/1M | $0.35via Sail best | $7.50via Mistral |
| Context window | 1M best | 262K |
| Max output | 1M best | 262K |
| Serving providers | 13 best | 4 |
| Date | Released Aug 26, 2026 | Released Apr 30, 2026 |
Benchmarks
Benchmark scores, side by side| GLM 5.3 Flash | Mistral Medium 3.5 | |
|---|---|---|
| Intelligence | 41.8 best | 14.2 |
| Terminal-Bench | 84% best | 51% |
| GPQA Diamond | 91% best | 75% |
| Output speed | 67 t/s | 167 t/s best |
| Latency (TTFT) | 2.80s | 2.21s best |
Cost calculator
choose a serving route for each sideInput tokens / month
Output tokens / month
GLM 5.3 Flash
via Sail
$0.90
Mistral Medium 3.5
via OpenRouter
$15
Capabilities
feature support, side by side| Feature | GLM 5.3 Flash | Mistral Medium 3.5 |
|---|---|---|
| Vision | ✓ | ✓ |
| Tool use | ✓ | ✓ |
| Reasoning | ✓ | ✓ |
| Audio | — | — |
| Prompt caching | ✓ | — |
| Structured output | ✓ | ✓ |
| Web search | — | — |
Related comparisons
Frequently asked questions
Which is cheaper, GLM 5.3 Flash or Mistral Medium 3.5?
GLM 5.3 Flash is cheaper for input ($0.11 vs $1.50 per 1M tokens) from Sail. GLM 5.3 Flash is cheaper for output ($0.35 vs $7.50 per 1M tokens) from Sail.
What is the context window difference between GLM 5.3 Flash and Mistral Medium 3.5?
GLM 5.3 Flash has a 1M-token context window and Mistral Medium 3.5 has 262K tokens, so GLM 5.3 Flash can take a larger prompt.
How do GLM 5.3 Flash and Mistral Medium 3.5 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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