tokevenGemini 3.1 Flash-Lite
Gemini 3.1 Flash-Lite is Gemini's fastest and most affordable model, priced at $0.25/MTok input and $1.50/MTok output with a 1,048.576K context window. Backfilled on 2026-09-23. Prices confirmed by the provider pricing page and the LiteLLM cross-check. Release date not published in a machine-readable source. Not yet benchmarked, so never recommended.
Input $/MTok
$0.25
Output $/MTok
$1.50
Context window
1,048.576K
Cache read discount
90% off
Gemini 3.1 Flash-Lite pricing breakdown
| Rate | Input $/MTok | Output $/MTok |
|---|---|---|
| Standard | $0.25 | $1.50 |
| Cached read (90% off input) | $0.03 | - |
| Cached write (no surcharge) | $0.25 | - |
| Batch (50% off) | $0.13 | $0.75 |
All rates in USD per million tokens. Prices verified against provider documentation.
Gemini 3.1 Flash-Lite task benchmarks
Confidence scores (0-100) and cross-provider rank for each task type. Rank 1 is best across all 72 models.
Not benchmarked. The third-party benchmark source used for confidence scores does not cover Gemini models yet. Scores will appear here once independent benchmarks are published.
Gemini 3.1 Flash-Lite cost by use case
Estimated cost per API call using default token counts for each workload.
| Use case | Input tokens | Output tokens | Cost / call |
|---|---|---|---|
| Code Generation | 2,000 | 4,000 | $0.006500 |
| Unit Test Generation | 3,000 | 5,000 | $0.008250 |
| SQL Generation | 1,500 | 1,000 | $0.001875 |
| API Generation | 3,000 | 6,000 | $0.009750 |
| Code Refactoring | 4,000 | 4,000 | $0.007000 |
| Code Review | 5,000 | 2,000 | $0.004250 |
| PR Review | 8,000 | 3,000 | $0.006500 |
| Security Review | 6,000 | 2,500 | $0.005250 |
| Bug Detection | 5,000 | 2,000 | $0.004250 |
| Document Summarization | 10,000 | 1,000 | $0.004000 |
| PDF Summarization | 15,000 | 1,500 | $0.006000 |
| Meeting Notes | 8,000 | 2,000 | $0.005000 |
Monthly cost projections
Projected monthly spend at different call volumes, using code generation as a representative workload (2,000 input / 4,000 output tokens per call).
| Calls / month | Without caching | With caching (90% read discount) |
|---|---|---|
| 1K | $6.5 | $6.19 |
| 10K | $65 | $61.85 |
| 100K | $650 | $618.5 |
| 500K | $3,250 | $3,092.5 |
| 1M | $6,500 | $6,185 |
Caching estimate assumes 70% of input tokens are cache reads. Your actual cache hit rate will depend on prompt structure and reuse.
Fast / Budget alternatives to Gemini 3.1 Flash-Lite
Same-tier models from other providers, sorted by input price.
| Model | Provider | Input $/MTok | Output $/MTok | Input savings |
|---|---|---|---|---|
| GPT 5 Nano | GPT | $0.05 | $0.40 | 80% cheaper |
| GPT 4.1 Nano | GPT | $0.10 | $0.40 | 60% cheaper |
| GPT 6 Luna | GPT | $0.10 | $0.50 | 60% cheaper |
| GPT 4o Mini | GPT | $0.15 | $0.60 | 40% cheaper |
| GPT 5.6 Luna | GPT | $0.20 | $1.20 | 20% cheaper |
| GPT 5.4 Nano | GPT | $0.20 | $1.25 | 20% cheaper |
| GPT 5 Mini | GPT | $0.25 | $2.00 | Same price |
| GPT 4.1 Mini | GPT | $0.40 | $1.60 | 60% more |
| GPT 3.5 Turbo | GPT | $0.50 | $1.50 | 100% more |
| GPT 3.5 Turbo (0125) | GPT | $0.50 | $1.50 | 100% more |
| GPT 5.4 Mini | GPT | $0.75 | $4.50 | 200% more |
| Claude Haiku 4.5 | Claude | $1.00 | $5.00 | 300% more |
| Grok Build 0.1 | Grok | $1.00 | $2.00 | 300% more |
| o3 Mini | GPT | $1.10 | $4.40 | 340% more |
| o4 Mini | GPT | $1.10 | $4.40 | 340% more |
Other Gemini models
Gemini 2.5 Flash-Lite
Fast / Budget / $0.10 in / $0.40 out
Gemini 3.5 Flash-Lite
Fast / Budget / $0.30 in / $2.50 out
Gemini 2.5 Flash
Fast / Budget / $0.30 in / $2.50 out
Gemini 3 Flash
Fast / Budget / $0.50 in / $3.00 out
Gemini 3.6 Flash
Fast / Budget / $0.75 in / $3.75 out
Gemini 3.7 Flash
Fast / Budget / $0.75 in / $3.75 out
Gemini 3.8 Flash
Fast / Budget / $0.75 in / $3.75 out
Gemini Robotics ER 2
Fast / Budget / $1.00 in / $5.00 out
Gemini 2.5 Computer Use
Fast / Budget / $1.25 in / $10.00 out
Gemini 2.5 Pro
Mid-tier / $1.25 in / $10.00 out
Gemini 3.5 Flash
Fast / Budget / $1.50 in / $9.00 out
Gemini Omni 1.1 Flash
Fast / Budget / $1.50 in / $9.00 out
Gemini Omni Flash
Fast / Budget / $1.50 in / $9.00 out
Gemini 3.1 Pro
Mid-tier / $2.00 in / $12.00 out
Gemini 3.1 Pro Custom Tools
Mid-tier / $2.00 in / $12.00 out
Track your Gemini 3.1 Flash-Lite spend
See exactly how much you spend on Gemini 3.1 Flash-Lite and where you can save. Two-line wrapper install, no API keys shared.