Gemini 2.5 Flash Lite Preview 09-2025
Gemini 2.5 Flash Lite Preview 09-2025 is a legacy integration reference; keep it only while you identify a current replacement.
- Family
- Gemini 2.5
- Released
- 2025-09-01
- Lifecycle
- Retired March 31, 2026
- Context
- 1M
- Architecture
- Decoder Only
- Knowledge cutoff
- 2025-01
- Specialization
- general
- Openness
- Proprietary
- License
- ProprietaryRestricted
- Weights
- Not released
- Code
- Unknown
- Training
- Pretrained
Cheapest of 1 route · GCP Vertex AI
Cheapest of 1 route · GCP Vertex AI
About
Google: Gemini 2.5 Flash Lite Preview 09-2025 available via OpenRouter. Pricing: $0.1/1M input, $0.4/1M output.
Providers(1)
Compare API pricing across 1 tracked provider route for input and output tokens, batch, and cached reads when available.
| Provider | Input / 1M | Output / 1M | Route |
|---|---|---|---|
| GCP Vertex AI | $0.100 | $0.400 | Serverless |
Deprecated provider routes(2)
| Provider | Status | Catalog ID |
|---|---|---|
| Google AI Studio | DeprecatedRetired March 31, 2026 | gemini-2.5-flash-lite-preview-09-2025 |
| OpenRouter | Deprecated | google/gemini-2.5-flash-lite-preview-09-2025 |
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 500+ models from 80+ providers via a single OpenAI-compatible API, with an optional Auto Router that selects a model per prompt from market spend data.
Portkey
GatewayProduction AI gateway routing to 1,600+ LLMs with failover, load balancing, caching, and guardrails; MIT-licensed open-source core is self-hostable. Now part of Palo Alto Networks as Prisma AIRS AI Gateway.
AIRouter
RouterCommercial LLM router (branded "AI Router" on its site) that picks the best model per request via a Decision API or an OpenAI-compatible Chat Completions endpoint, with a private selection mode that routes on anonymized patterns; sold as BYOK subscription plans priced by routed tokens.
Helicone
GatewayObservability-first AI gateway with routing, caching, rate limiting, and request tracing; Apache-2.0 open-source platform 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
No task-mapped benchmark peers are available for this model yet.
Benchmark scores(1)
| Benchmark | Score | Version | Evaluation | Source |
|---|---|---|---|---|
| 1358.0 | text creative_writing 2026-10-22Observed 2026-10-22 | Configuration: Gemini 2.5 Flash-Lite Preview (Non-Thinking, 09-2025) Harness: LMArena blind pairwise human votes, Bradley-Terry Evaluator: LMArena Confidence: confirmed Notes: LMArena Text arena, Creative Writing category (no style control), board published 2026-10-22 (HF lmarena-ai/leaderboard-dataset @a467e6b9, text config, latest split). Board entry 'Gemini 2.5 Flash-Lite Preview (Non-Thinking, 09-2025)' (category creative_writing in text/latest-00000-of-00001.parquet): rank 159 of 416, rating 1358.3 (95% CI 1350.8-1365.9), 6621 votes. The board entry or catalog model carries a Preview/Beta/Experimental label. LLM Reference model is lifecycle-deprecated; score kept as historical. Source: LMArena (CC BY 4.0). Retrieved 2026-10-27. | Source Source: LMArena (lmarena.ai), CC BY 4.0 |
Migration checks
No linked migration route is available for this model yet.