Gemini 3.1 Flash-Lite vs Gemini 3.5 Flash-Lite
Side-by-side comparison of API pricing, specs, benchmarks, and capabilities
| Specification |
by Google
|
Gemini 3.5 Flash-LiteIntro price
by Google
|
|---|---|---|
| Overview | ||
| Status | Current budget | Current budget |
| Released | Jan 1, 2026 | Jul 21, 2026 |
| Pricing per million tokens | ||
| Input | $0.250/Mtok | $0.300/Mtok |
| Output | $1.50/Mtok | $2.50/Mtok |
| Blended avg | $0.875/Mtok | $1.40/Mtok |
| Cached input | — | $0.030/Mtok |
| Specifications | ||
| Context window | 1M tokens | 1M tokens |
| Parameters | Proprietary | Proprietary |
| Speed (TPS) | — | — |
| Modalities | ||
| Input |
textimageaudiovideo
|
textimageaudiovideo
|
| Benchmarks sources: Google model card / Artificial Analysis | ||
| GPQA Diamond | 50 vendor | — |
| SWE-Bench Verified | 30 vendor | — |
| Humanity's Last Exam | 15 vendor | — |
| ARC-AGI 2 | 18 vendor | — |
| AIME 2025 | 50 vendor | — |
| MMMLU | 72 vendor | — |
| BFCL | 60 vendor | — |
| HumanEval | 78 vendor | — |
| MATH 500 | 65 vendor | — |
| Independent composite scores each on its own scale — not part of the average above | ||
| AA Intelligence Index | — | 36.5 |
| AA Agentic Index | — | 26.8 |
| AA-Omniscience Index (−100–100) | — | 6.9 |
| GDPval-AA v2 | — | 1138 ELO |
| LMSYS Chatbot Arena | — | 1456.5 ELO |
| Providers | ||
| Available from |
Google — $0.250/$1.50/Mtok
|
Google — $0.300/$2.50/Mtok
|
Cost at scale
1M tokens · 50/50 input/output| Volume | Gemini 3.1 Flash-Lite | Gemini 3.5 Flash-Lite | Savings |
|---|---|---|---|
| 1M tokens | $0.88 | $1.4 | $0.52 (37.1%) |
| 10M tokens | $8.75 | $14 | $5.25 (37.5%) |
| 100M tokens | $87.5 | $140 | $52.5 (37.5%) |
| 1000M tokens | $875 | $1400 | $525 (37.5%) |
When to pick which
distilled from the pricing and spec data above- cost dominates: $0.875/Mtok blended vs $1.40 — 37.5% less on the same 50/50 token mix
- your workload re-reads context (agents, RAG, long chats): cached input costs $0.030/Mtok — 90% off its list input price, a discount Gemini 3.1 Flash-Lite doesn't offer
Price movement
recorded changes since we began tracking each model · last checked Aug 1, 2026| Model | Changes | Latest move | Old → new $/M |
|---|---|---|---|
| Gemini 3.1 Flash-Lite | 1 | price cut on Jun 9, 2026 | $0.45/$2.7 → $0.25/$1.5/Mtok |
| Gemini 3.5 Flash-Lite | 0 | — no move | Stable since we began tracking — no change recorded |
The cheaper option here — Gemini 3.1 Flash-Lite costs $0.875/Mtok blended on Google.
Summary
Gemini 3.1 Flash-Lite by Google costs $0.250/Mtok input and $1.50/Mtok output, with a 1M-token context window. It supports text, image, audio, video input.
Gemini 3.5 Flash-Lite by Google costs $0.300/Mtok input and $2.50/Mtok output, with a 1M-token context window. It supports text, image, audio, video input.
On a blended cost basis, Gemini 3.1 Flash-Lite is 37.5% cheaper than Gemini 3.5 Flash-Lite.
Note: Pricing is per million tokens. Actual costs vary with usage patterns, prompt caching, and batch discounts. Always verify against official provider pricing pages.