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Gemini 2.0 Flash-Lite vs Grok-1.5

Gemini 2.0 Flash-Lite leads the LLM Stats Score 12.4 to -2.5.

Google · xAI · Updated for 2026

Which is better?

Gemini 2.0 Flash-Lite leads the overall LLM Stats Score 12.4 to -2.5, ranking #240 overall.

In the 4 individual benchmarks reported for both models, Gemini 2.0 Flash-Lite wins 4; this is a narrower head-to-head signal than the composite indexes.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Gemini 2.0 Flash-Lite

  • overall performance matters — it scores 12.4 and ranks #240 on LLM Stats
  • your work emphasizes reasoning — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 4 of 4 exact shared results
  • you want the most recent training data — it shipped Feb 2025

Choose Grok-1.5

  • you are already invested in the xAI ecosystem

At a glance

The differences that matter most.

Gemini 2.0 Flash-Lite
Google
Grok-1.5
xAI
Core performance indexes
LLM Stats Score
12.4
#240
-2.5
#328
Reasoning
12.6
#232
-2.0
#318
Cost, coverage & limits
Benchmark wins
4 of 4
0 of 4
Input price
$0.07 / M
— / M
Output price
$0.30 / M
— / M
Context window
1,048,576
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

2 shared
Index
Gemini 2.0 Flash-Lite
Grok-1.5
Math
18.4#171
5.4#266
Vision
1.9#169
-4.8#197
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

13 reported for Gemini 2.0 Flash-Lite · 9 for Grok-1.5

4 shared

Gemini 2.0 Flash-Lite outperforms in 4 benchmarks (GPQA, MATH, MMLU-Pro, MMMU), while Grok-1.5 is better at 0 benchmarks.

Gemini 2.0 Flash-Lite significantly outperforms across most benchmarks.

Mon Sep 07 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only Gemini 2.0 Flash-Lite specifies input context (1,048,576 tokens). Only Gemini 2.0 Flash-Lite specifies output context (8,192 tokens).

Google
Gemini 2.0 Flash-Lite
Input1,048,576 tokens
Output8,192 tokens
xAI
Grok-1.5
Input- tokens
Output- tokens
Mon Sep 07 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Gemini 2.0 Flash-Lite supports multimodal inputs, whereas Grok-1.5 does not.

Gemini 2.0 Flash-Lite can handle both text and other forms of data like images, making it suitable for multimodal applications.

Gemini 2.0 Flash-Lite

Text
Images
Audio
Video

Grok-1.5

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Gemini 2.0 Flash-Lite

Proprietary

Closed source

Grok-1.5

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 2.0 Flash-Lite was released on 2025-02-05, while Grok-1.5 was released on 2024-03-28.

Gemini 2.0 Flash-Lite is 10 months newer than Grok-1.5.

Gemini 2.0 Flash-Lite

Feb 5, 2025

1.6 years ago

10mo newer
Grok-1.5

Mar 28, 2024

2.4 years ago

Knowledge Cutoff

When training data ends

Gemini 2.0 Flash-Lite has a documented knowledge cutoff of 2024-06-01, while Grok-1.5's cutoff date is not specified.

We can confirm Gemini 2.0 Flash-Lite's training data extends to 2024-06-01, but cannot make a direct comparison without Grok-1.5's cutoff date.

Gemini 2.0 Flash-Lite

Jun 2024

Grok-1.5

—

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Gemini 2.0 Flash-Lite and Grok-1.5 side-by-side, then vote on the output you prefer.

Gemini 2.0 Flash-Lite
✓ Preferred
Grok-1.5
Open in Playground

FAQ

Common questions about Gemini 2.0 Flash-Lite vs Grok-1.5.

Which is better, Gemini 2.0 Flash-Lite or Grok-1.5?

Gemini 2.0 Flash-Lite leads the LLM Stats Score 12.4 to -2.5. Gemini 2.0 Flash-Lite is made by Google and Grok-1.5 is made by xAI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Gemini 2.0 Flash-Lite compare to Grok-1.5 in benchmarks?

Gemini 2.0 Flash-Lite scores MATH: 86.8%, FACTS Grounding: 83.6%, Global-MMLU-Lite: 78.2%, MMLU-Pro: 71.6%, MMMU: 68.0%. Grok-1.5 scores GSM8k: 90.0%, DocVQA: 85.6%, MMLU: 81.3%, HumanEval: 74.1%, MMMU: 53.6%.

What are the context window sizes for Gemini 2.0 Flash-Lite and Grok-1.5?

Gemini 2.0 Flash-Lite supports 1.0M tokens and Grok-1.5 supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Gemini 2.0 Flash-Lite and Grok-1.5?

Key differences include LLM Stats Score (12.4 vs -2.5), multimodal support (yes vs no). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 2.0 Flash-Lite and Grok-1.5?

Gemini 2.0 Flash-Lite is developed by Google and Grok-1.5 is developed by xAI.

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