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ModelCap

Gemini 3.1 Flash Lite Preview

All-versions archive #102Arena #98API only

Google·google/gemini-3.1-flash-lite-preview

Gemini 3.1 Flash Lite Preview is ModelCap archive rank #102 (Measured), from the ModelCap Index as of 22 Sept 2026, 02:49 UTC.

Gemini 3.1 Flash Lite Preview listed OpenRouter input price is $0.25 per 1M tokens and listed output price is $1.50 per 1M tokens, from OpenRouter listed prices as of 22 Sept 2026, 02:49 UTC.

Gemini 3.1 Flash Lite Preview has a published context limit of 1M tokens in the ModelCap catalogue as of 22 Sept 2026, 02:49 UTC.

Gemini 3.1 Flash Lite Preview has 3 published OpenRouter serving endpoints, from OpenRouter as of 22 Sept 2026, 02:49 UTC.

Gemini 3.1 Flash Lite Preview weight access is api only, from ModelCap classification of published repository metadata as of 22 Sept 2026, 02:49 UTC.

Snapshot facts · download the public dataset · methodology

ModelCap Index · All-versions archive
62.4#102
Measured · 84% support · score interval 56.3–68.5
Evidence as of 19 Sept 2026, 22:46 UTC
Market Gravity
48.4Increased by 0.1
Secondary market signal

Superseded by Gemini 3.5 Flash Lite. It no longer holds a current-board position; its all-versions archive rank is #102.

Input
$0.25
per 1M tokens
Output
$1.50
per 1M tokens
Context
1M
tokens
Providers
3
endpoints
Gateway spend
latest · Vercel share

Providers

Uptime measured over the last 30 minutes
ProviderInputOutputContextQuantUptime
Google AI StudioflexCheapest$0.125$0.751M100.0%
Google AI Studio$0.25$1.501M99.80%
Google AI Studiopriority$0.45$2.701M100.0%

Other versions (3)

ModelCap Index · All-versions archive

Methodology
62.4
Measured · 3 public benchmark observations across 3 boards
All-versions archive
#102
Public rank basis
Measured (measured)
Index support
83.6% · strong
Index interval
56.3–68.5
Rank posterior
Not available
Top 5 / Top 10 probability
Not available / Not available
Posterior as of
Snapshot timestamp unavailable
Evidence as of
19 Sept 2026, 22:46 UTC
Identity binding
Exact catalogue product · google/google/gemini-3.1-flash-lite-preview · aggregates disclosed benchmark configurations · endpoint configuration not claimed
Index observations used
3
Qualified Index evidence point
62.4
Bayesian Evidence Score · measured evidence input only

BES normalizes admitted public benchmark evidence for measured Index rows. Its legacy score and observables prior do not define the public language rank.

Observed capability
62.4
Evidence status
confirmed · 83% mass
General preference
63.7
Coding
53.3
Agents & tools
Reasoning
Evidence breadth
92%
Evidence coverage
84%
Market and catalogue signals · secondary, never the language Index rank
Usage (OpenRouter popularity)
25.9
Liquidity (providers × uptime)
97.4
Open reach (HF downloads)
Surface (context / tools / modalities)
100.0
Freshness
46.2
  • · OpenRouter popularity #72
  • · 1 live provider
  • · Catalogue: context 1048576, reasoning, tools, modalities Text/Image/Video/File/Audio
  • · First seen 2026-03-03

These adoption and deployment observations remain context only. They do not change this model's ModelCap Index score or rank.

BES evidence selected · measured input only

The bounded 0–100 capability score blends each source’s competitive placement with its published achievement, then combines capability families. Evidence breadth adds a modest uncertainty adjustment; price and popularity are not part of benchmark-led rank.

Deployment readiness

Metadata index
44.2
limited · 56% metadata coverage
Not capability
Artifact reproducibility
0.0
Access & legal clarity
30.3
Deployability
80.0
Evaluation provenance
70.8

Missing: artifactReproducibility.revision-sha, artifactReproducibility.architecture-and-model-type, artifactReproducibility.parameter-count, artifactReproducibility.serialized-weight-format, artifactReproducibility.base-lineage, accessLegalClarity.declared-license, accessLegalClarity.resolvable-license-terms, evaluationProvenance.evaluation-dataset-revisions.

A metadata completeness and deployability index—not a safety certification, quality grade, or production-readiness claim.

Market activity

Venue coverage
Market Gravity
48.4
OpenRouter weekly popularity
#72 of 322

Market Gravity uses OpenRouter’s full-catalogue popularity order. Sparse Vercel top-ten observations appear only when published and do not affect the score.

Arena preference

Status
Ranked
Source
LMArena
Official rank
#98 of 402
Rating
1432.4
95% confidence interval
1429–1436
Votes
60K
Source published at
13 Sept 2026, 00:00 UTC
Category
overall
Identity match confidence
100%

Market Gravity breakdown

Usage55%
25.9

OpenRouter weekly popularity across the full model catalogue.

Liquidity25%
97.4

Independent providers versus the model's open or closed cohort, weighted by uptime.

Open reach15%
50.0

Hugging Face 30-day downloads for open models; neutral for closed models.

Freshness5%
46.2

Time since first public availability, on a six-month half-life.

Specification

Context window
1M tokens
Max output
66K tokens
Inputs
Text, Image, Video, File, Audio
Outputs
Text
Tokenizer
Gemini
Cached input tokens
$0.025 / 1M
First seen on OpenRouter
3 Mar 2026

Capabilities

  • Supported: Reasoning
  • Supported: Tool use
  • Supported: Structured output
  • Supported: Response format
  • Not supported: Moderated

Benchmark leaderboards featuring Gemini 3.1 Flash Lite Preview

All leaderboards
Public benchmark boards on which Gemini 3.1 Flash Lite Preview has a published result
LeaderboardScoreSource rankConfigurationPublished
Arena coding leaderboardArena (LMArena)14571451–1463#134 of 397Default13 Sept 2026
Artificial Analysis Intelligence IndexArtificial Analysis15.6#115 of 151intelligence-index:v4.3:reasoning-unspecified19 Sept 2026
τ²-Bench Telecom (Artificial Analysis run)Artificial Analysis31.3%#268 of 436tau2:telecom:dual-control:pass-at-1:3-repeats:source-model="Gemini 3.1 Flash-Lite":reasoning=true5 Sept 2026
Humanity's Last Exam (Artificial Analysis run)Artificial Analysis17.2%#201 of 615hle:may-2025:text-only-2158:no-tools:pass-at-1:source-model="Gemini 3.1 Flash-Lite":reasoning=true5 Sept 2026

Gemini 3.1 Flash Lite Preview: common questions

How does Gemini 3.1 Flash Lite Preview rank among AI models?

Gemini 3.1 Flash Lite Preview is a superseded version and is not on the current board as of 22 September 2026. Its archive position, where one exists, is shown on the page; the newer version carries the current rank.

How much does Gemini 3.1 Flash Lite Preview cost per 1M tokens?

Gemini 3.1 Flash Lite Preview is listed at $0.25 per 1M input tokens and $1.50 per 1M output tokens as of 22 September 2026. Prices come from the OpenRouter catalogue and re-observe on every refresh. For 1,000 requests using 2,000 input and 500 output tokens each, the listed rates imply $1.25 total (2M input + 0.5M output). This excludes caching, batch discounts, prompt-length tiers, tool charges and retries; verify the chosen endpoint's rate and limits before budgeting.

What is the context window of Gemini 3.1 Flash Lite Preview?

Gemini 3.1 Flash Lite Preview has a published context window of 1M tokens (1,048,576) and a maximum output of 66K tokens. Individual providers can serve less than the published maximum; the providers table lists each endpoint's own limit.

Is Gemini 3.1 Flash Lite Preview open-weight?

API only. No downloadable model weights are linked in the current source data; access is through a hosted API or product.

Which API providers serve Gemini 3.1 Flash Lite Preview?

One provider serves Gemini 3.1 Flash Lite Preview through OpenRouter as of 22 September 2026: Google AI Studio. Each provider's price, context limit, quantization and measured uptime are in the providers table above.

Which benchmarks has Gemini 3.1 Flash Lite Preview been evaluated on?

Gemini 3.1 Flash Lite Preview has published results on 4 public boards tracked by ModelCap as of 22 September 2026: Arena coding 1457 (#134 of 397), AA Intelligence Index 15.6 (#115 of 151), AA τ²-Bench Telecom 31.3% (#268 of 436) and AA Humanity's Last Exam 17.2% (#201 of 615). Each board page ranks every tracked model on that benchmark; the ModelCap Index combines them with published uncertainty.

When was Gemini 3.1 Flash Lite Preview released?

Gemini 3.1 Flash Lite Preview first appeared in the catalogue on 3 Mar 2026. It has since been superseded by Gemini 3.5 Flash Lite. Rank and price movements since then are recorded on the site's changes feed.