AI model comparison
Step 3.7 Flash vs Gemini 3.1 Flash Lite
Pricing, context window, benchmarks, and features compared side by side. Or skip the guesswork and send one prompt to both.
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
Gemini 3.1 Flash Lite is Google’s GA high-efficiency multimodal model optimized for low-latency, high-volume workloads.
- Input / 1M
- $0.25
- Output / 1M
- $1.50
- Context
- 1.05M
Comparing image generators? Compare image models
At a glance
Quick verdict
How the two models stack up on the things people ask about most.
Lower price
Step 3.7 Flash
1.3x cheaper for a typical chat
Higher intelligence score
Step 3.7 Flash
19.5 vs 15.6 on Artificial Analysis
Larger context window
Gemini 3.1 Flash Lite
1.05M vs 262K tokens
Newer release
Step 3.7 Flash
Released May 28, 2026
Benchmarks
Benchmark scores
Independent scores from Artificial Analysis. Higher is better.
Intelligence index
Gemini 3.1 Flash Lite15.6Coding index
Gemini 3.1 Flash Lite34.7Agentic index
Gemini 3.1 Flash Lite1.6Pricing
Step 3.7 Flash vs Gemini 3.1 Flash Lite API pricing
Per-token API rates. Cheaper option highlighted.
| Metric | Gemini 3.1 Flash Lite | |
|---|---|---|
| Input tokensPer 1M tokens | $0.20 | $0.25 |
| Output tokensPer 1M tokens | $1.15 | $1.50 |
| Cached input (read)Per 1M tokens | $0.04 | $0.03 |
| Cache writePer 1M tokens | Not available | $0.08 |
| Web searchPer request | Not available | $0.014 |
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
Gemini 3.1 Flash Lite$1.25Coding task
30K in, 4K out
Gemini 3.1 Flash Lite$13.50$6.75 cachedLong document summary
150K in, 2K out
Gemini 3.1 Flash Lite$40.50$6.75 cachedSpecs
Context window and capabilities
How much each model can read, how much it can write, and what it accepts as input.
| Metric | Gemini 3.1 Flash Lite | |
|---|---|---|
| Context window | 262K tokens | 1.05M tokens |
| Max output | 230K tokens | 66K tokens |
| Input types | Image, Text, Video | Audio, File, Image, Text, Video |
| Output types | Text | Text |
| Reasoning effort levels | High, Medium, Low | High, Medium, Low, Minimal, None |
| Default reasoning effort | Medium | Minimal |
| Release date | May 28, 2026 | May 7, 2026 |
Features
Supported features
API features available for each model.
| Metric | Gemini 3.1 Flash Lite | |
|---|---|---|
| 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 |
Keep exploring
More on these models
Other head-to-heads, the full model page, and the alternatives list for each model.
- Step 3.7 Flash vs DeepSeek V4.1 Flash
- Step 3.7 Flash vs Qwen3.6 35B A3B
- Step 3.7 Flash vs MiniMax M2.1
- Step 3.7 Flash vs GPT-5.4 Nano
- Step 3.7 Flash vs GPT-5 Mini
- Step 3.7 Flash vs Qwen3.5-35B-A3B
- Step 3.7 Flash vs LongCat 2.0
- Step 3.7 Flash vs MiniMax M2
- Step 3.7 Flash vs Muse Glimmer 30B
- Step 3.7 Flash vs Step 3.5 Flash
Gemini 3.1 Flash LiteView full model details- Gemini 3.1 Flash Lite vs Qwen3.6 35B A3B
- Gemini 3.1 Flash Lite vs Gemma 4 31B
- Gemini 3.1 Flash Lite vs Gemini 2.5 Flash
- Gemini 3.1 Flash Lite vs Gemma 4 26B A4B
- Gemini 3.1 Flash Lite vs Claude Haiku 4.5
- Gemini 3.1 Flash Lite vs DeepSeek V3.1
- Gemini 3.1 Flash Lite vs Gemini 2.5 Pro
- Gemini 3.1 Flash Lite vs GLM 4.6
- Gemini 3.1 Flash Lite vs GLM 4.7 Flash
- Gemini 3.1 Flash Lite vs R1 0528
- Gemini 3.1 Flash Lite vs Muse Glimmer 30B
- Gemini 3.1 Flash Lite vs Qwen3.5-122B-A10B
- Gemini 3.1 Flash Lite vs LongCat 2.0
- Gemini 3.1 Flash Lite vs DeepSeek V3.1 Terminus
- Gemini 3.1 Flash Lite vs o4 Mini
- Gemini 3.1 Flash Lite vs Kimi K2 0905
- Gemini 3.1 Flash Lite vs Mistral Medium 3.5
- Gemini 3.1 Flash Lite vs Nova 2 Lite
- Gemini 3.1 Flash Lite vs GLM 4.5
- Gemini 3.1 Flash Lite vs Kimi K2 0711
- Gemini 3.1 Flash Lite vs MiniMax M1
Our take
Step 3.7 Flash is 1.3x cheaper for a typical chat. Step 3.7 Flash scores higher on the Artificial Analysis Intelligence Index (19.5 vs 15.6). Gemini 3.1 Flash Lite has the larger context window (1.05M vs 262K 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 Gemini 3.1 Flash Lite 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 Gemini 3.1 Flash Lite costs $0.25 per 1M input tokens and $1.50 per 1M output tokens.
Which has a bigger context window, Step 3.7 Flash or Gemini 3.1 Flash Lite?
Gemini 3.1 Flash Lite supports up to 1.05M tokens of context, compared with 262K for Step 3.7 Flash.
Is Step 3.7 Flash smarter than Gemini 3.1 Flash Lite?
On the Artificial Analysis Intelligence Index, Step 3.7 Flash scores 19.5 and Gemini 3.1 Flash Lite scores 15.6, 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 Gemini 3.1 Flash Lite at the same time?
Yes. Shortcut Chat sends one prompt to multiple models at once, so you can see Step 3.7 Flash and Gemini 3.1 Flash Lite answer side by side and keep the better response.
Why choose? Ask both.
Send one prompt to Step 3.7 Flash and Gemini 3.1 Flash Lite at the same time. Compare the answers side by side and keep the best one.