Google: Gemini 3.5 Flash
Gemini 3.5 Flash is Google's high-efficiency multimodal model, bringing near-Pro level coding and reasoning at Flash-tier cost and speed. It is highly optimized for coding proficiency and parallel agentic execution...
Anyone in the Project can @-mention Google: Gemini 3.5 Flash with the team's shared context - pooled credits, one chat, one memory.
Starter is free forever - 1 Project, 100 credits/month, 1 MCP. No card.
Verdict
Best for
- High-volume batch document processing
- Cost-sensitive chatbot deployments
- Rapid prototyping with multimodal inputs
- Long-context summarization tasks
- Video and audio transcription workflows
Strengths
The 1M token context window makes this model viable for full-length books, lengthy transcripts, and multi-document analysis without chunking. Multimodal support across text, image, video, and audio enables unified workflows for content processing. Input pricing at $1.50/Mtok undercuts many competitors, making it economical for high-volume applications. Response latency is typically faster than Gemini Pro, which matters for user-facing applications where sub-second replies improve experience.
Trade-offs
Reasoning quality lags behind Gemini Pro and frontier models like Claude Sonnet 4.5 or GPT-4o on complex logic, math, and nuanced instruction-following. Output pricing at $9.00/Mtok climbs quickly for verbose responses, eroding cost advantages in conversational use cases. Without public benchmark data, teams must validate performance on their specific tasks before committing. The model occasionally produces less coherent outputs on multi-step reasoning compared to slower, more capable alternatives.
Specifications
- Provider
- Category
- llm
- Context length
- 1,048,576 tokens
- Max output
- 65,536 tokens
- Modalities
- text, image, video, file, audio
- License
- proprietary
- Released
- 2026-05-19
Pricing
- Input
- $1.50/Mtok
- Output
- $9.00/Mtok
- Model ID
google/gemini-3.5-flash
Per-token prices show what the model costs upstream. On Switchy your team draws from one shared org credit pool - one plan, one balance for everyone.
Team cost calculator
5 seats · 80 msgs/day
Switchy meters this against your org's shared credit pool - one plan, one balance for everyone.
Providers
| Provider | Context | Input | Output | P50 latency | Throughput | 30d uptime |
|---|---|---|---|---|---|---|
| 1049k | $1.50/Mtok | $9.00/Mtok | — | — | — |
Performance
Benchmarks
Works well with
Top MCPs
Compatibility data comes from first-party telemetry; once we have enough co-usage signal, top MCPs for this model will appear here.
How Switchy teams use it
Starter prompts
Summarize Long Transcript
Read this full transcript and produce a structured summary with three sections: key decisions made, action items assigned, and unresolved questions. Keep each section under 150 words.
Extract Data from Invoice
Extract the following fields from this invoice image: vendor name, invoice number, date, total amount, and line items with quantities. Return as JSON.
Classify Support Tickets
Read this support ticket and classify it into one of these categories: billing, technical, account access, feature request, or other. Provide a one-sentence reason for your classification.
Generate Product Descriptions
Write a 60-word product description for this item based on the specs provided. Focus on benefits for the target customer and include one call-to-action.
Transcribe and Tag Video
Transcribe this video and identify timestamps where the speaker discusses pricing, features, or customer testimonials. Format as a timestamped list.
Example outputs
Illustrative - representative of the model's voice and quality, not literal recordings.
Analyze this 45-minute earnings call transcript and extract the three most significant forward-looking statements, with supporting context and potential risk factors mentioned by executives.
The model would produce a structured analysis identifying: (1) the planned Q3 expansion into Southeast Asian markets, supported by CFO comments on allocated capital and regional hiring targets, with noted risks around regulatory approval timelines; (2) the AI infrastructure investment roadmap through 2026, referencing specific capex figures and partnership announcements, while flagging supply chain dependencies; (3) revised guidance on recurring revenue mix, citing the shift from perpetual to subscription licensing, with concerns about customer migration friction explicitly raised during Q&A. Each statement would include timestamp references and direct quotes.
With a 1M+ token context window, Gemini 3.5 Flash can ingest entire long-form documents without chunking or summarization loss. The model excels at cross-referencing statements across a large input space. However, at $9/Mtok output, generating verbose summaries of lengthy materials can become expensive compared to models with lower output pricing.
I'm attaching a 20-second product demo video. Write three different social media captions: one for LinkedIn (professional), one for Instagram (lifestyle-focused), and one for Twitter (punchy and technical).
The model would analyze the video content—identifying product features, visual style, pacing, and any on-screen text—then generate three distinct captions. The LinkedIn version would emphasize business value and use cases with a consultative tone. The Instagram caption would focus on user benefits and aesthetic appeal, incorporating relevant hashtags and emoji. The Twitter version would distill the core technical innovation into a single compelling sentence with a call-to-action link. Each caption would reflect platform-specific conventions while maintaining brand consistency.
Native video understanding eliminates the need for separate transcription or frame-extraction pipelines. Gemini 3.5 Flash handles multimodal inputs efficiently, making it practical for content workflows that span formats. The $1.50/Mtok input rate is competitive for processing video, though users should verify output quality matches their brand voice without extensive editing.
Debug this Python function that's supposed to merge overlapping time intervals but fails on edge cases. Here's the code, test cases, and the stack trace from pytest.
The model would identify that the function fails when the input list contains a single interval or when intervals are already sorted in reverse order. It would explain that the current implementation assumes forward chronological order and doesn't handle the empty-list base case before the sort operation. The response would include a corrected version with explicit edge-case handling, add type hints for clarity, and suggest two additional test cases covering intervals with identical start times and zero-duration intervals. The explanation would reference the specific line numbers where the logic breaks.
Gemini 3.5 Flash provides solid code comprehension and debugging across common languages, suitable for daily development tasks. The large context window accommodates full test suites and stack traces in a single prompt. For highly specialized debugging or performance optimization, dedicated code models may offer deeper static analysis, but Flash handles the majority of practical debugging scenarios effectively.
Use-case deep-dives
When Gemini 3.5 Flash handles support tickets with screenshots and videos
A 12-person SaaS support team gets 200+ tickets daily mixing text questions, error screenshots, screen recordings, and PDF attachments. Gemini 3.5 Flash processes all five modalities in one pass at $1.50/Mtok input, so a typical ticket with 2,000 tokens of context plus images costs under a cent to categorize and draft a response. The 1M token context window means you can load your entire help center and product docs into every call without chunking or retrieval overhead. If your tickets average under 500 tokens and rarely include media, Claude Haiku at $0.25/Mtok input will save you 80% — but the moment you need native video or audio understanding, Gemini 3.5 Flash is the only model in this price range that handles it without preprocessing.
Why Gemini 3.5 Flash works for legal teams reviewing 200-page agreements
A 4-person legal ops team reviews vendor contracts averaging 80,000 tokens (roughly 200 pages) against a 50-page playbook of standard clauses and red flags. Gemini 3.5 Flash's 1M token window fits the entire contract plus playbook in a single prompt, so the model sees every cross-reference and conditional clause without splitting the document. At $1.50/Mtok input, a full review costs $0.12 per contract; output is $9.00/Mtok but redline suggestions rarely exceed 5,000 tokens, adding another $0.05. The trade-off: we have no public benchmark data on Gemini 3.5 Flash's accuracy for legal reasoning, so you'll want to run a 20-contract pilot against your existing process before committing. If accuracy falls short, GPT-4o at $2.50 input is the safer bet despite the 67% price increase.
When native video input beats transcript-only moderation for a UGC platform
A 30-person social app moderates 5,000 user-uploaded videos daily for policy violations (violence, spam, prohibited products). Gemini 3.5 Flash ingests video directly without transcription, so it catches visual violations that audio-only models miss — a product placement in the background, a hand gesture, on-screen text overlays. At $1.50/Mtok input, a 60-second video averages 8,000 tokens (roughly $0.012 per video), and the model returns a binary decision plus 200-token explanation for $0.002 output. Total per-video cost is under $0.015, versus $0.04+ for a Whisper transcription plus GPT-4o vision pass. The threshold: if your moderation policy is purely text-based (hate speech, scams) and you already have transcripts, skip the video model and use Claude Sonnet 4 at $3/Mtok for better reasoning at double the input cost but half the workflow complexity.
Frequently asked
Is Gemini 3.5 Flash good for general text tasks?
Yes, Gemini 3.5 Flash handles general text tasks well — drafting, summarization, Q&A, and light analysis. It's a multimodal model, so you can mix text with images, video, audio, and files in the same prompt. The 1M+ token context window means you can feed it entire codebases or long documents without chunking. No public benchmarks yet, but Flash variants typically trade some accuracy for speed and cost.
Is Gemini 3.5 Flash cheaper than GPT-4o or Claude Sonnet?
At $1.50 input and $9.00 output per Mtok, Gemini 3.5 Flash is cheaper on input than GPT-4o ($2.50) and Claude Sonnet 4 ($3.00), but its output pricing is higher than both. If your workload is input-heavy — like analyzing long documents or videos — Flash wins. If you generate long outputs, GPT-4o ($10.00 output) or Sonnet ($15.00 output) cost more, so Flash still competes.
Can Gemini 3.5 Flash process video and audio files?
Yes. Gemini 3.5 Flash accepts video, audio, images, and files natively, not just text. You can upload a video and ask it to summarize scenes, transcribe audio, or extract data from a PDF — all in one prompt. The 1M token context means you can fit hours of video or audio. This makes it useful for media analysis, transcription workflows, and multimodal RAG where you mix documents with recordings.
How does Gemini 3.5 Flash compare to Gemini 2.0 Flash?
Gemini 3.5 Flash is the next iteration after 2.0 Flash, likely with better reasoning and multimodal understanding. Pricing stayed the same ($1.50/$9.00 per Mtok), and the 1M context window is unchanged. Without public benchmarks, we can't quantify the improvement, but Google's Flash line historically improves quality without raising cost. If 2.0 Flash worked for you, 3.5 should be a drop-in upgrade with fewer errors.
Should I use Gemini 3.5 Flash for real-time chat applications?
Probably not. Flash models prioritize throughput over latency, so first-token time can lag behind GPT-4o or Claude Sonnet in chat. Use it for batch jobs, document analysis, or async workflows where speed matters less than cost and context size. If you need sub-second responses for chat, test it first — or default to a model optimized for streaming like GPT-4o-mini or Haiku.
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