Gemini 3 Flash
Gemini 3 Flash is worth evaluating for coding, rag, and agents when its provider route and context window match the workload.
Use it for
- Teams evaluating coding, rag, and agents
- Workloads that can use a 1m context window
- Buyers comparing 4 tracked provider routes
Do not use it for
- Workloads where another current model has stronger sourced task evidence
- Family
- Gemini 3
- Released
- 2025-12-17
- Context
- 1m
- Architecture
- Decoder Only
- Knowledge cutoff
- 2025-01
- Specialization
- general
- Openness
- Proprietary
- License
- ProprietaryCommercial use: conditional
- Weights
- Not released
- Code
- Unknown
- Training
- Pretrained
Cheapest of 4 routes · GCP Vertex AI
About
Gemini 3 Flash is Google's speed-optimized Gemini 3 model, available in public preview via the Gemini API and Vertex AI. It supports text, image, audio, and video inputs with a 1M token context window and is priced at $0.50 per 1M input tokens and $3.00 per 1M output tokens.
Gemini 3 Flash is a proprietary model in the Gemini 3 family. The structured metadata tracks a 1m-token context window, multimodal input, audio, function calling, tool use, and code execution. This page tracks provider routes through Replicate API, GCP Vertex AI, Google AI Studio, and 1 more, with the cheapest tracked route listed at $0.5 input and $3 output per 1M tokens. Headline tracked benchmarks include MMLU PRO 88.6, τ-bench 71.5, and Chatbot Arena 1467.0.
Top use-case fit: coding, agents, and build tasks
Coding
Q/$ C1 relevant benchmark in the decision map.
RAG
Included by capability and metadata signals in the decision map.
Agents
Q/$ C2 relevant benchmarks in the decision map.
Provider price ladder
Compare all 4Compare API pricing across 4 providers for input and output tokens, batch, and cached reads when available.
| Provider | Input / 1M | Output / 1M | Cache | Route |
|---|---|---|---|---|
| GCP Vertex AI | $0.500 | $3.00 | - | Serverless |
| Google AI Studio | $0.500 | $3.00 | - | Serverless |
| Replicate API | $0.500 | $3.00 | - | Serverless |
| Vercel AI Gateway | $0.500 | $3.00 | read $0.050 | Serverless |
Available via routers & gateways(13)
LiteLLM
GatewayOpen-source Python SDK and proxy server that unifies 100+ LLM APIs behind a single OpenAI-compatible interface, with load balancing, cost tracking, and configurable failover.
OpenRouter
HybridUnified hybrid gateway to 400+ models from 60+ providers via a single OpenAI-compatible API, with optional auto-routing that selects the best model per prompt.
Portkey
GatewayProduction AI gateway routing to 1,600+ LLMs with failover, load balancing, semantic caching, and guardrails; Apache 2.0 core is fully self-hostable with the complete feature set.
AIRouter
RouterCommercial LLM router that analyzes incoming requests and routes to the optimal model for cost/quality/latency via a drop-in OpenAI-compatible API, with a privacy-preserving embedding mode that avoids sending prompt content.
Helicone
GatewayObservability-first AI gateway with routing, caching, rate limiting, and request tracing; Apache 2.0 open-source core with a managed hosted tier for logging and analytics.
Kong AI Gateway
GatewayMulti-LLM AI gateway built on Kong Gateway 3.x, adding semantic routing, load balancing, guardrails, and MCP traffic analytics as plugins over Kong's existing API management platform.
Capabilities
Benchmark peer barsfor Coding
Benchmark scores(6)
| Benchmark | Score | Version | Evaluation | Source |
|---|---|---|---|---|
| MMLU PRO | 88.6 | —Observed 2026-04-19 | — | Source |
| τ-bench | 71.5 | τ-benchObserved 2026-04-24 | — | Source |
| Chatbot Arena | 1467.0 | —Observed 2026-04-28 | — | Source |
| MMMU Pro | 87.6 | Vals.ai standardized CoT harness, 4-option, Pass@1, temp=0Observed 2026-06-02 | — | Source |
| Google-Proof Q&A | 90.4 | —Observed 2025-12-17 | — | Source |
| SWE-bench Verified | 78.0 | —Observed 2025-12-17 | — | Source |
Migration checks
No linked migration route is available for this model yet.
Rankings & picks(7)
Compare Gemini 3 Flash with other models
Comparison and alternatives
Browse all comparisons →Frequently asked questions
What is the context window of Gemini 3 Flash?
Gemini 3 Flash has a context window of 1m tokens.
How much does Gemini 3 Flash cost?
Gemini 3 Flash is available at $0.5/1M input tokens through Replicate API.
When was Gemini 3 Flash released?
Gemini 3 Flash was released on 2025-12-17.
Which providers offer Gemini 3 Flash?
Gemini 3 Flash is available from 4 providers: Replicate API, GCP Vertex AI, Google AI Studio, Vercel AI Gateway.
What benchmarks has Gemini 3 Flash been tested on?
Gemini 3 Flash has been evaluated on 6 benchmarks, including MMLU PRO, τ-bench, Chatbot Arena, MMMU Pro, Google-Proof Q&A.
Cheapest of 4 routes · GCP Vertex AI