Pairwise benchmark snapshot · Aug 16, 2026noindex (thin pair)

Google: Gemini 3.1 Flash Lite vs GPT-5.6 Sol benchmark

Name: Google: Gemini 3.1 Flash Lite vs GPT-5.6 Sol AI benchmark comparison
Creator: CompareLLM
License: https://creativecommons.org/licenses/by/4.0/

This page compares Google: Gemini 3.1 Flash Lite (Google) and GPT-5.6 Sol (OpenAI) using the latest snapshots we have as of Aug 16, 2026. Google: Gemini 3.1 Flash Lite wins on output price at $1.5/1M. GPT-5.6 Sol has the larger context window (1.1M tokens). Every cell below is a dated snapshot from a named public source — we do not invent missing scores, and we do not run SWE-bench ourselves.

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Google

Google: Gemini 3.1 Flash Lite

Auto-discovered from OpenRouter (google/gemini-3.1-flash-lite). Preview until a second source matches.

$1.5/1M out

OpenAI

GPT-5.6 Sol

OpenAI 5.6 flagship tier. Official API $5/$30 per 1M tokens (OpenAI pricing, Jul 30 2026 update left Sol unchanged).

Elo 1,608$30/1M out

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Instant pairwise benchmark recalculation across 400+ LLMs

Model A

Model B

Quick vs:vs Claude Opus 4.5 vs Claude Opus 4.6 vs Claude Sonnet 4.5 vs Claude 3.7 Sonnet

Interactive Comparison Diagram

Matchup Breakdown

Tug-of-War Matchup Matrix

Category wins across intelligence, speed, and pricing efficiency.

Google: Gemini 3.1 Flash Lite (2)vsGPT-5.6 Sol (8)

Google: Gemini 3.1 Flash Lite: 2W (20%)Overall: GPT-5.6 SolGPT-5.6 Sol: 8W (80%)

← Google: Gemini 3.1 Flash LiteGPT-5.6 Sol →

GPT-5.6 Sol (5/5)

Intelligence & Reasoning

Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy

Preference Elo

—vs1,608

Coding Elo

—vs1,602

SWE-bench

—vs77.6%

LiveBench

—vs73.9%

GPQA Diamond

—vs86.8%

Google: Gemini 3.1 Flash Lite: 0WGPT-5.6 Sol: 5W

GPT-5.6 Sol (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed

—vs84 tok/s

Time to first token

—vs270 ms

Google: Gemini 3.1 Flash Lite: 0WGPT-5.6 Sol: 2W

Google: Gemini 3.1 Flash Lite (2/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price

$1.5/1Mvs$30/1M

Input price

$0.25/1Mvs$5/1M

Context window

1Mvs1.1M

Google: Gemini 3.1 Flash Lite: 2WGPT-5.6 Sol: 1W

Capability Matchup Radar

Multi-Dimensional Capability Radar

Each spoke is a skill. Farther from the center is better (0–100th percentile). Tap any dot to inspect details.

Tap any node to inspect

Percentile 0–100

Dimensional AdvantageGPT-5.6 Sol 5/6

Preference Elo

No shared data

Throughput Speed

No shared data

Price Efficiency

Google: Gemini 3.1 Flash Lite

$28.50/1M cheaper

Full Benchmark Score Matrix

—

Elo

High is better

—

EloHigh is better

1,608

Code Elo

High is better

—

Code EloHigh is better

1,602

LiveBench

High is better

—

LiveBenchHigh is better

73.9%

SWE-bench

High is better

—

SWE-benchHigh is better

77.6%

GPQA

High is better

—

GPQAHigh is better

86.8%

TTFT

Low is better

—

TTFTLow is better

270 ms

Speed

High is better

—

SpeedHigh is better

84 tok/s

In $

Low is better

+1900%$0.25/1M

In $Low is better

$5/1M

Out $

Low is better

+1900%$1.5/1M

Out $Low is better

$30/1M

Context

High is better

ContextHigh is better

1.1M

Interactive Simulator

Workload Cost & Savings Calculator

Simulate monthly production API costs based on published $/1M tokens.

Save up to 95% with Google: Gemini 3.1 Flash Lite

Monthly Volume50M tokens/mo

Quick Presets:

Token Ratio (In vs Out)70% In / 30% Out

RAG / Search (10% out)Coding / Chat (50% out)

Google: Gemini 3.1 Flash Lite$31.25 / mo

In: $8.75Out: $22.50

GPT-5.6 Sol$625.00 / mo

In: $175.00Out: $450.00

Estimated Cost Delta

Google: Gemini 3.1 Flash Lite is estimated to save $593.75/month ($7,125/year).

Based on 50M tokens (30% gen)

Key Selection Recommendations

1
Google: Gemini 3.1 Flash Lite:Pick Google: Gemini 3.1 Flash Lite when you are optimizing output cost.
2
GPT-5.6 Sol:Pick GPT-5.6 Sol for million-token RAG or long-document jobs.

Recommended Workload Routing

Repo / coding agentsinsufficient data

Need SWE-bench on both sides.

High-volume chatGoogle: Gemini 3.1 Flash Lite

Lower output list price ($1.5/1M).

Voice / low-latency UIinsufficient data

Need TTFT on both sides.

Long-document RAGGPT-5.6 Sol

Larger window (1.1M).

Screenshots / visionGPT-5.6 Sol

GPT-5.6 Sol is the side marked multimodal in the catalog.

Target Workload	Recommended Pick	Evaluation Rationale
Repo / coding agents	insufficient data	Need SWE-bench on both sides.
High-volume chat	Google: Gemini 3.1 Flash Lite	Lower output list price ($1.5/1M).
Voice / low-latency UI	insufficient data	Need TTFT on both sides.
Long-document RAG	GPT-5.6 Sol	Larger window (1.1M).
Screenshots / vision	GPT-5.6 Sol	GPT-5.6 Sol is the side marked multimodal in the catalog.

Related Editorial Dispatches & Benchmark Notes

View all news

compareAug 12, 2026

Grok vs ChatGPT: price and Elo, not a personality contest

Brand hub remaps to top xAI vs top OpenAI. After Aug 12 that is Grok 4.6 vs Sol.

compareJul 24, 2026

Claude vs GPT benchmark: this hub always remaps to the current Elo leaders

Not a frozen 2025 article. Today that is usually Opus 5 vs GPT-5.6 Sol. Dated cells, not a brand fight.

compareJul 16, 2026

Gemini vs GPT: long context versus the OpenAI flagship invoice

Hub remaps to top Google vs top OpenAI Elo. Usually 3.6 Pro vs Sol. Window vs price is the plot.

launchJul 9, 2026

GPT-5.6 Sol: OpenAI’s $5/$30 flagship tier on this leaderboard

Jul 9 2026 family; Jul 30 price update left Sol unchanged. This is the GPT side of Claude vs GPT.

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LIVE

Google

Google: Gemini 3.1 Flash Lite

Elo n/a

LiveBench—

SWE-bench—

Speed—

Output cost$1.5/1M

OpenAI

GPT-5.6 Sol

Elo 1,608

LiveBench73.9%

SWE-bench77.6%

Speed84 tok/s

Output cost$30/1M

Frequently Asked Questions

Which is better overall, Google: Gemini 3.1 Flash Lite or GPT-5.6 Sol?: We do not have preference Elo for both models, so we do not declare an overall winner. Compare the metrics that exist.
Which is better at coding, Google: Gemini 3.1 Flash Lite or GPT-5.6 Sol?: SWE-bench is missing for at least one model, so we do not rank coding from a single number.
Which is cheaper to run in production?: Google: Gemini 3.1 Flash Lite output tokens are $1.5/1M versus $30/1M. Input prices and retry rates still move the real bill.
Which is faster, Google: Gemini 3.1 Flash Lite or GPT-5.6 Sol?: We do not have TTFT for both models.
Which has the larger context window?: GPT-5.6 Sol accepts 1.1M tokens versus 1M.
Can I self-host either model?: Neither model is marked open-weights here. You are comparing hosted APIs.
Are these scores from CompareLLM’s own evals?: No. V1 aggregates public leaderboards (and optional first-party latency pings). Each cell names its source and date. Read /methodology.
What does preference Elo mean on this page?: Preference Elo is a crowd vote from LMArena / Arena. People see two hidden answers and pick the one they like more. The model that wins more often gets a higher Elo. That means people preferred it — not that it passed a school test. It is not SWE-bench, not accuracy, and not a number we invent. Google: Gemini 3.1 Flash Lite and GPT-5.6 Sol Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Similar Head-to-Head Comparisons

All Google: Gemini 3.1 Flash Lite matchups →|All GPT-5.6 Sol matchups →

GPT-5.6 Sol vs GPT-5 (previous gpt-flagship)Gemini 3 Pro vs GPT-5.6 Sol Gemini 3 Flash vs GPT-5.6 Sol GPT-4.5 Orion vs GPT-5.6 Sol Gemini 2.0 Flash Thinking vs GPT-5.6 Sol GPT-5.6 Terra vs GPT-5.6 Sol

Google: Gemini 3.1 Flash Lite vs GPT-5.6 Sol benchmark

Interactive Comparison Diagram

Matchup Breakdown

Tug-of-War Matchup Matrix

Category wins across intelligence, speed, and pricing efficiency.

Google: Gemini 3.1 Flash Lite (2)vsGPT-5.6 Sol (8)

Google: Gemini 3.1 Flash Lite: 2W (20%)Overall: GPT-5.6 SolGPT-5.6 Sol: 8W (80%)

← Google: Gemini 3.1 Flash LiteGPT-5.6 Sol →

GPT-5.6 Sol (5/5)

Intelligence & Reasoning

Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy

Preference Elo

—vs1,608

Coding Elo

—vs1,602

SWE-bench

—vs77.6%

LiveBench

—vs73.9%

GPQA Diamond

—vs86.8%

Google: Gemini 3.1 Flash Lite: 0WGPT-5.6 Sol: 5W

GPT-5.6 Sol (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed

—vs84 tok/s

Time to first token

—vs270 ms

Google: Gemini 3.1 Flash Lite: 0WGPT-5.6 Sol: 2W

Google: Gemini 3.1 Flash Lite (2/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price

$1.5/1Mvs$30/1M

Input price

$0.25/1Mvs$5/1M

Context window

1Mvs1.1M

Google: Gemini 3.1 Flash Lite: 2WGPT-5.6 Sol: 1W

Recommended Workload Routing

Repo / coding agentsinsufficient data

Need SWE-bench on both sides.

High-volume chatGoogle: Gemini 3.1 Flash Lite

Lower output list price ($1.5/1M).

Voice / low-latency UIinsufficient data

Need TTFT on both sides.

Long-document RAGGPT-5.6 Sol

Larger window (1.1M).

Screenshots / visionGPT-5.6 Sol

GPT-5.6 Sol is the side marked multimodal in the catalog.

Target Workload	Recommended Pick	Evaluation Rationale
Repo / coding agents	insufficient data	Need SWE-bench on both sides.
High-volume chat	Google: Gemini 3.1 Flash Lite	Lower output list price ($1.5/1M).
Voice / low-latency UI	insufficient data	Need TTFT on both sides.
Long-document RAG	GPT-5.6 Sol	Larger window (1.1M).
Screenshots / vision	GPT-5.6 Sol	GPT-5.6 Sol is the side marked multimodal in the catalog.

Frequently Asked Questions

Which is better overall, Google: Gemini 3.1 Flash Lite or GPT-5.6 Sol?

We do not have preference Elo for both models, so we do not declare an overall winner. Compare the metrics that exist.

Which is better at coding, Google: Gemini 3.1 Flash Lite or GPT-5.6 Sol?

SWE-bench is missing for at least one model, so we do not rank coding from a single number.

Which is cheaper to run in production?

Google: Gemini 3.1 Flash Lite output tokens are $1.5/1M versus $30/1M. Input prices and retry rates still move the real bill.

Which is faster, Google: Gemini 3.1 Flash Lite or GPT-5.6 Sol?

We do not have TTFT for both models.

Which has the larger context window?

GPT-5.6 Sol accepts 1.1M tokens versus 1M.

Can I self-host either model?

Neither model is marked open-weights here. You are comparing hosted APIs.

Are these scores from CompareLLM’s own evals?

No. V1 aggregates public leaderboards (and optional first-party latency pings). Each cell names its source and date. Read /methodology.

What does preference Elo mean on this page?

Preference Elo is a crowd vote from LMArena / Arena. People see two hidden answers and pick the one they like more. The model that wins more often gets a higher Elo. That means people preferred it — not that it passed a school test. It is not SWE-bench, not accuracy, and not a number we invent. Google: Gemini 3.1 Flash Lite and GPT-5.6 Sol Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Swap or Add Any Model to this Matchup

Interactive Comparison Diagram

Tug-of-War Matchup Matrix

Intelligence & Reasoning

Speed & Latency

Pricing & Capacity

Multi-Dimensional Capability Radar

No shared data

No shared data

Google: Gemini 3.1 Flash Lite

Full Benchmark Score Matrix

Workload Cost & Savings Calculator

Key Selection Recommendations

Recommended Workload Routing

Related Editorial Dispatches & Benchmark Notes

Grok vs ChatGPT: price and Elo, not a personality contest

Claude vs GPT benchmark: this hub always remaps to the current Elo leaders

Gemini vs GPT: long context versus the OpenAI flagship invoice

GPT-5.6 Sol: OpenAI’s $5/$30 flagship tier on this leaderboard

Cast Your Matchup Vote

Community Discussions (0)

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CompareLLM Matrix

Google: Gemini 3.1 Flash Lite

GPT-5.6 Sol

Frequently Asked Questions

Related news

Similar Head-to-Head Comparisons

Swap or Add Any Model to this Matchup

Interactive Comparison Diagram

Tug-of-War Matchup Matrix

Intelligence & Reasoning

Speed & Latency

Pricing & Capacity

Multi-Dimensional Capability Radar

No shared data

No shared data

Google: Gemini 3.1 Flash Lite

Full Benchmark Score Matrix

Workload Cost & Savings Calculator

Key Selection Recommendations

Recommended Workload Routing

Related Editorial Dispatches & Benchmark Notes

Grok vs ChatGPT: price and Elo, not a personality contest

Claude vs GPT benchmark: this hub always remaps to the current Elo leaders

Gemini vs GPT: long context versus the OpenAI flagship invoice

GPT-5.6 Sol: OpenAI’s $5/$30 flagship tier on this leaderboard

Cast Your Matchup Vote

Community Discussions (0)

Share card

CompareLLM Matrix

Google: Gemini 3.1 Flash Lite

GPT-5.6 Sol

Frequently Asked Questions

Related news

Similar Head-to-Head Comparisons