Gemini 2.5 Flash Live API
Gemini 2.5 Flash Live API is worth evaluating for rag, agents, and long context when its provider route and context window match the workload.
Use it for
- Teams evaluating rag, agents, and long context
- Workloads that can use a 128k context window
- Buyers comparing 1 tracked provider route
Do not use it for
- Workloads where another current model has stronger sourced task evidence
- Family
- Gemini 2.5
- Released
- 2025-04-01
- Context
- 128k
- Architecture
- Decoder Only
- Knowledge cutoff
- 2025-01
- Specialization
- audio
- Openness
- Proprietary
- License
- ProprietaryCommercial use: conditional
- Training
- Pretrained
Cheapest of 1 route · GCP Vertex AI
About
Gemini 2.5 Flash Live API is Google DeepMind's Gemini 2.5 model with multimodal text and image input. It offers a 128K-token context window.
Gemini 2.5 Flash Live API is a proprietary model in the Gemini 2.5 family. The structured metadata tracks a 128k-token context window, multimodal input, audio, function calling, tool use, and structured outputs. This page tracks provider routes through GCP Vertex AI. Headline tracked benchmarks include Time to First Audio (ms) 630.0.
Top use-case fit: coding, agents, and build tasks
RAG
Included by capability and metadata signals in the decision map.
Agents
Included by capability and metadata signals in the decision map.
Long context
Included by capability and metadata signals in the decision map.
Provider price ladder
Compare API pricing across 1 providers for input and output tokens, batch, and cached reads when available.
| Provider | Input / 1M | Output / 1M | Route |
|---|---|---|---|
| GCP Vertex AI | $0.500 | - | ServerlessPartial |
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 RAG
No task-mapped benchmark peers are available for this model yet.
Benchmark scores(1)
| Benchmark | Score | Version | Source |
|---|---|---|---|
| Time to First Audio (ms) | 630.0 | p50-ms | https://artificialanalysis.ai/speech-to-speech |
Migration checks
No linked migration route is available for this model yet.
Frequently asked questions
What is the context window of Gemini 2.5 Flash Live API?
Gemini 2.5 Flash Live API has a context window of 128k tokens.
How much does Gemini 2.5 Flash Live API cost?
Gemini 2.5 Flash Live API is available at $0.5/1M input tokens through GCP Vertex AI.
When was Gemini 2.5 Flash Live API released?
Gemini 2.5 Flash Live API was released on 2025-04-01.
Which providers offer Gemini 2.5 Flash Live API?
Gemini 2.5 Flash Live API is available from 1 provider: GCP Vertex AI.
What benchmarks has Gemini 2.5 Flash Live API been tested on?
Gemini 2.5 Flash Live API has been evaluated on 1 benchmark, including Time to First Audio (ms).
Cheapest of 1 route · GCP Vertex AI