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Gemini 2.5 Flash-Lite vs Grok 4.6

Comparing Gemini 2.5 Flash-Lite and Grok 4.6 across benchmarks, pricing, and capabilities.

Google · xAI · Updated for 2026

Which is better?

Gemini 2.5 Flash-Lite and Grok 4.6 trade strengths across price, capabilities, and technical limits. The better choice depends on the workload.

On price, Gemini 2.5 Flash-Lite is roughly 17.1x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Gemini 2.5 Flash-Lite also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.

Based on current benchmark, pricing, and model metadata for 2026.

Choose Gemini 2.5 Flash-Lite

  • cost matters — it's about 17.1x cheaper per token
  • you process long inputs — it offers a 1,048,576 token context window
  • you need open weights you can self-host or fine-tune

Choose Grok 4.6

  • you want the most recent training data — it shipped Aug 2026

At a glance

The differences that matter most.

Gemini 2.5 Flash-Lite
Google
Grok 4.6
xAI
Benchmark wins
—
—
Input price
$0.10 / M
$2.00 / M
Output price
$0.40 / M
$6.00 / M
Context window
1,048,576
500,000
Released
Jun 2025
Aug 2026
License
Creative Commons Attribution 4.0 License
Proprietary

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

Gemini 2.5 Flash-Lite and Grok 4.6don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Arena Performance

Playground indexes and blind preference scores

Pricing Analysis

Price comparison per million tokens

Gemini 2.5 Flash-Lite costs less

For input processing, Gemini 2.5 Flash-Lite ($0.10/1M tokens) is 20.0x cheaper than Grok 4.6 ($2.00/1M tokens).

For output processing, Gemini 2.5 Flash-Lite ($0.40/1M tokens) is 15.0x cheaper than Grok 4.6 ($6.00/1M tokens).

In conclusion, Grok 4.6 is more expensive than Gemini 2.5 Flash-Lite.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Tue Aug 25 2026 • llm-stats.com
Google
Gemini 2.5 Flash-Lite
Input tokens$0.10
Output tokens$0.40
Best providerGoogle
xAI
Grok 4.6
Input tokens$2.00
Output tokens$6.00
Best providerxAI
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Gemini 2.5 Flash-Lite accepts 1,048,576 input tokens compared to Grok 4.6's 500,000 tokens. Only Gemini 2.5 Flash-Lite specifies output context (65,536 tokens).

Google
Gemini 2.5 Flash-Lite
Input1,048,576 tokens
Output65,536 tokens
xAI
Grok 4.6
Input500,000 tokens
Output- tokens
Tue Aug 25 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Gemini 2.5 Flash-Lite and Grok 4.6 support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Gemini 2.5 Flash-Lite

Text
Images
Audio
Video

Grok 4.6

Text
Images
Audio
Video

License

Usage and distribution terms

Gemini 2.5 Flash-Lite is licensed under Creative Commons Attribution 4.0 License, while Grok 4.6 uses a proprietary license.

License differences may affect how you can use these models in commercial or open-source projects.

Gemini 2.5 Flash-Lite

Creative Commons Attribution 4.0 License

Open weights

Grok 4.6

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 2.5 Flash-Lite was released on 2025-06-17, while Grok 4.6 was released on 2026-08-12.

Grok 4.6 is 14 months newer than Gemini 2.5 Flash-Lite.

Gemini 2.5 Flash-Lite

Jun 17, 2025

1.2 years ago

Grok 4.6

Aug 12, 2026

1 weeks ago

1.2yr newer

Knowledge Cutoff

When training data ends

Gemini 2.5 Flash-Lite has a knowledge cutoff of 2025-01-01, while Grok 4.6 has a cutoff of 2026-02-01.

Grok 4.6 has more recent training data (up to 2026-02-01), making it potentially better informed about events through that date compared to Gemini 2.5 Flash-Lite (2025-01-01).

Gemini 2.5 Flash-Lite

Jan 2025

Grok 4.6

Feb 2026

1.1 yr newer

Provider Availability

Gemini 2.5 Flash-Lite is available from Google. Grok 4.6 is available from xAI.

Gemini 2.5 Flash-Lite

google logo
Google
Input Price:Input: $0.10/1MOutput Price:Output: $0.40/1M

Grok 4.6

xai logo
xAI
Input Price:Input: $2.00/1MOutput Price:Output: $6.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Gemini 2.5 Flash-Lite and Grok 4.6 side-by-side, then vote on the output you prefer.

Gemini 2.5 Flash-Lite
✓ Preferred
Grok 4.6
Open in Playground

FAQ

Common questions about Gemini 2.5 Flash-Lite vs Grok 4.6.

Which is better, Gemini 2.5 Flash-Lite or Grok 4.6?

Gemini 2.5 Flash-Lite (Google) and Grok 4.6 (xAI) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does Gemini 2.5 Flash-Lite compare to Grok 4.6 in benchmarks?

Gemini 2.5 Flash-Lite scores FACTS Grounding: 84.1%, Global-MMLU-Lite: 81.1%, MMMU: 72.9%, GPQA: 64.6%, Vibe-Eval: 51.3%. Grok 4.6 scores CursorBench v3.2: 69.9%, DeepSWE 1.1: 65.9%, FrontierCode: 61.3%, AA-Index: 61.0%, GDPval-AA: 58.4%.

Is Gemini 2.5 Flash-Lite cheaper than Grok 4.6?

Gemini 2.5 Flash-Lite is 20.0x cheaper for input tokens. Gemini 2.5 Flash-Lite costs $0.10/M input and $0.40/M output via google. Grok 4.6 costs $2.00/M input and $6.00/M output via xai.

What are the context window sizes for Gemini 2.5 Flash-Lite and Grok 4.6?

Gemini 2.5 Flash-Lite supports 1.0M tokens and Grok 4.6 supports 500K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Gemini 2.5 Flash-Lite and Grok 4.6?

Key differences include context window (1.0M vs 500K), input pricing ($0.10 vs $2.00/M), licensing (Creative Commons Attribution 4.0 License vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 2.5 Flash-Lite and Grok 4.6?

Gemini 2.5 Flash-Lite is developed by Google and Grok 4.6 is developed by xAI.

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