AI model comparison
Step 3.7 Flash vs GLM 4.6
Pricing, context window, benchmarks, and features compared side by side. Or skip the guesswork and send one prompt to both.
StepFun
Step 3.7 Flash
Step 3.7 Flash is StepFun's latest high-efficiency multimodal Mixture-of-Experts model.
- Input / 1M
- $0.20
- Output / 1M
- $1.15
- Context
- 262K
Z.ai
GLM 4.6
Compared with GLM-4.5, this generation brings several key improvements: Longer context window: The context window has been expanded from 128K to 200K tokens, enabling the model to handle more complex
- Input / 1M
- $0.43
- Output / 1M
- $1.75
- Context
- 205K
At a glance
Quick verdict
How the two models stack up on the things people ask about most.
Lower price
Step 3.7 Flash
1.8x cheaper for a typical chat
Higher intelligence score
Step 3.7 Flash
19.5 vs 18.5 on Artificial Analysis
Larger context window
Step 3.7 Flash
262K vs 205K tokens
Newer release
Step 3.7 Flash
Released May 28, 2026
Benchmarks
Benchmark scores
Independent scores from Artificial Analysis. Higher is better.
Intelligence index
Coding index
Agentic index
Pricing
Step 3.7 Flash vs GLM 4.6 API pricing
Per-token API rates. Cheaper option highlighted.
| Metric | ||
|---|---|---|
| Input tokensPer 1M tokens | $0.20 | $0.43 |
| Output tokensPer 1M tokens | $1.15 | $1.75 |
| Cached input (read)Per 1M tokens | $0.04 | $0.08 |
| Cache writePer 1M tokens | Not available | Not available |
What it costs in practice
Estimated cost per 1,000 requests at standard rates. Coding and long-document figures also show the cost when the input is already cached.
Chat message
2K in, 500 out
Coding task
30K in, 4K out
Long document summary
150K in, 2K out
Specs
Context window and capabilities
How much each model can read, how much it can write, and what it accepts as input.
| Metric | ||
|---|---|---|
| Context window | 262K tokens | 205K tokens |
| Max output | 230K tokens | 16K tokens |
| Input types | Image, Text, Video | Text |
| Output types | Text | Text |
| Reasoning effort levels | High, Medium, Low | Not available |
| Default reasoning effort | Medium | Not available |
| Release date | May 28, 2026 | September 30, 2025 |
Features
Supported features
API features available for each model.
| Metric | ||
|---|---|---|
| Tool calling | Supported | Supported |
| Structured outputs | Supported | Supported |
| JSON mode | Supported | Supported |
| Reasoning | Supported | Supported |
| Temperature | Supported | Supported |
| Stop sequences | Supported | Supported |
| Deterministic seed | Supported | Supported |
| Verbosity control | Not supported | Not supported |
Our take
Step 3.7 Flash is 1.8x cheaper for a typical chat. Step 3.7 Flash scores higher on the Artificial Analysis Intelligence Index (19.5 vs 18.5). Step 3.7 Flash has the larger context window (262K vs 205K tokens). The right pick depends on your workload, so the quickest way to settle it is to send the same prompt to both and compare.
FAQ
Frequently asked questions
Is Step 3.7 Flash or GLM 4.6 cheaper?
Step 3.7 Flash is cheaper for a typical chat (2K input tokens and 500 output tokens). Step 3.7 Flash costs $0.20 per 1M input tokens and $1.15 per 1M output tokens, while GLM 4.6 costs $0.43 per 1M input tokens and $1.75 per 1M output tokens.
Which has a bigger context window, Step 3.7 Flash or GLM 4.6?
Step 3.7 Flash supports up to 262K tokens of context, compared with 205K for GLM 4.6.
Is Step 3.7 Flash smarter than GLM 4.6?
On the Artificial Analysis Intelligence Index, Step 3.7 Flash scores 19.5 and GLM 4.6 scores 18.5, putting Step 3.7 Flash ahead. Benchmarks don't capture everything, so the best test is running your own prompts through both.
Can I use Step 3.7 Flash and GLM 4.6 at the same time?
Yes. Shortcut Chat sends one prompt to multiple models at once, so you can see Step 3.7 Flash and GLM 4.6 answer side by side and keep the better response.
Why choose? Ask both.
Send one prompt to Step 3.7 Flash and GLM 4.6 at the same time. Compare the answers side by side and keep the best one.