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Chat with Gemini 3.7 Flash online

Google's newest Flash: a million tokens of context, native video, and reasoning tuned for agents — at Flash speed.

Trusted by 790,000+ users

1.048576M tokens

Context

65,536 tokens

Max output

Fast

Speed

Straight from Gemini 3.7 Flash

Three prompts, three unedited answers, generated on September 2, 2026 through NinjaChat. Click the prompt to copy it and run it yourself.

Prompt

Write a Python function that merges overlapping intervals, plus three short tests. Keep the whole answer under 40 lines of code.

Gemini 3.7 Flash answered
def merge_intervals(intervals):
    if not intervals:
        return []
    # Sort intervals based on the start time
    intervals.sort(key=lambda x: x[0])
    merged = [intervals[0]]

    for current in intervals[1:]:
        prev = merged[-1]
        # Overlap exists if current start <= previous end
        if current[0] <= prev[1]:
            prev[1] = max(prev[1], current[1])
        else:
            merged.append(current)

    return merged


# Tests
assert merge_intervals([[1, 3], [2, 6], [8, 10], [15, 18]]) == [
    [1, 6],
    [8, 10],
    [15, 18],
]
assert merge_intervals([[1, 4], [2, 3]]) == [[1, 4]]
assert merge_intervals([[1, 2], [3, 4]]) == [[1, 2], [3, 4]]

print("All tests passed!")

Read: We ran the same 3 prompts on 12 AI models — Unedited answers, latency and price for every model, measured through the NinjaChat API in September 2026.

Served by Google as gemini-3.7-flash. Answers vary run to run; these are one take each, not the best of several.

What you’ll use it for

Agentic coding

Fix the bug from the screenshot, the log and the repo in one go.

Video and image understanding

Recordings, diagrams and photos as first-class input.

Long documents

A million tokens: whole archives in one thread.

High-throughput work

Fast enough to run in volume, smart enough to trust.

Prompts to steal

Tuned to this model — click any line to copy.

About Gemini 3.7 Flash

Gemini 3.7 Flash is the newest Flash-class model in Google's Gemini line, the tier that trades a little peak capability for speed and cost, and in 3.7 the trade is small. It carries a million-token context window, reads images and video natively, calls tools, and exposes thinking levels so you can ask it to reason harder on the questions that deserve it. On NinjaChat it is included in every plan, with no Google subscription needed.

Google positions 3.7 Flash at agentic coding, multimodal reasoning and high-throughput long-context work, and that is where it shines in daily use: a screenshot of a failing test plus the repository, a recording you want summarized, a stack of PDFs to reconcile. It is fast enough to iterate with and capable enough that many people keep it as the default and reach for a Pro-class model only when something is genuinely hard.

Compared with Gemini 3.6 Flash, 3.7 is the same shape with better reasoning and coding; compared with GPT-5.6 Luna, it is the closest rival in the fast class, with stronger native video understanding and Google's tool ecosystem. On NinjaChat all of them sit in one picker, which is the fastest way to find out which one thinks the way you do.

How to use Gemini 3.7 Flash

From zero to your first result in under a minute.

01

Create a NinjaChat account and choose a plan

02

Open chat and pick Gemini 3.7 Flash from the model list

03

Drop in screenshots, video or files with your question

04

Ask it to think harder on the difficult ones

05

Compare with GPT-5.6 Luna for the same speed class

Tips for better results

  • Give it the video or screenshot, not a description of it
  • Raise the thinking level for math and multi-step logic
  • Keep a long project in one thread; the context is there for it
  • Escalate to Gemini 3.1 Pro when depth matters more than speed

Gemini 3.7 Flash vs the alternatives

Where it wins, and where it doesn't.

vs Gemini 3.6 Flash

View

Better reasoning and coding in the same fast shape

3.6 remains available if your prompts are tuned for it

vs GPT-5.6 Luna

View

Native video understanding and a huge context at the same speed

Luna has OpenAI's tool ecosystem

vs Gemini 3.1 Pro

View

Much faster and cheaper

3.1 Pro goes deeper on the hardest problems

Questions, answered.

Beyond chat — images & video

The same subscription covers the image studio and video generation.

A real FLUX Pro Ultra outputA real Google Imagen 4 outputA real Seedream output
See every model →

Gemini 3.7 Flash, and 50 more.

One subscription covers every model on NinjaChat, Gemini 3.7 Flash included.