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Gemini 2.5 Pro vs Grok 4.6

Comparing Gemini 2.5 Pro and Grok 4.6 across benchmarks, pricing, and capabilities.

Google · xAI · Updated for 2026

Which is better?

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

On price, Grok 4.6 is roughly 1.1x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Gemini 2.5 Pro 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 Pro

  • you process long inputs — it offers a 1,048,576 token context window

Choose Grok 4.6

  • cost matters — it's about 1.1x cheaper per token
  • you want the most recent training data — it shipped Aug 2026

At a glance

The differences that matter most.

Gemini 2.5 Pro
Google
Grok 4.6
xAI
Benchmark wins
—
—
Input price
$1.25 / M
$2.00 / M
Output price
$10.00 / M
$6.00 / M
Context window
1,048,576
500,000
Released
May 2025
Aug 2026
License
Proprietary
Proprietary

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

Gemini 2.5 Pro 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

Grok 4.6 costs less

For input processing, Gemini 2.5 Pro ($1.25/1M tokens) is 1.6x cheaper than Grok 4.6 ($2.00/1M tokens).

For output processing, Gemini 2.5 Pro ($10.00/1M tokens) is 1.7x more expensive than Grok 4.6 ($6.00/1M tokens).

In conclusion, Gemini 2.5 Pro is more expensive than Grok 4.6.*

* 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 Pro
Input tokens$1.25
Output tokens$10.00
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 Pro accepts 1,048,576 input tokens compared to Grok 4.6's 500,000 tokens. Only Gemini 2.5 Pro specifies output context (65,536 tokens).

Google
Gemini 2.5 Pro
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 Pro and Grok 4.6 support multimodal inputs.

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

Gemini 2.5 Pro

Text
Images
Audio
Video

Grok 4.6

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 2.5 Pro

Proprietary

Closed source

Grok 4.6

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 2.5 Pro was released on 2025-05-20, while Grok 4.6 was released on 2026-08-12.

Grok 4.6 is 15 months newer than Gemini 2.5 Pro.

Gemini 2.5 Pro

May 20, 2025

1.3 years ago

Grok 4.6

Aug 12, 2026

1 weeks ago

1.2yr newer

Knowledge Cutoff

When training data ends

Gemini 2.5 Pro has a knowledge cutoff of 2025-01-31, 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 Pro (2025-01-31).

Gemini 2.5 Pro

Jan 2025

Grok 4.6

Feb 2026

1.1 yr newer

Provider Availability

Gemini 2.5 Pro is available from Google. Grok 4.6 is available from xAI.

Gemini 2.5 Pro

google logo
Google
Input Price:Input: $1.25/1MOutput Price:Output: $10.00/1M

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 Pro and Grok 4.6 side-by-side, then vote on the output you prefer.

Gemini 2.5 Pro
✓ Preferred
Grok 4.6
Open in Playground

FAQ

Common questions about Gemini 2.5 Pro vs Grok 4.6.

Which is better, Gemini 2.5 Pro or Grok 4.6?

Gemini 2.5 Pro (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 Pro compare to Grok 4.6 in benchmarks?

Gemini 2.5 Pro scores MRCR: 93.0%, AIME 2024: 92.0%, Global-MMLU-Lite: 88.6%, Video-MME: 84.8%, AIME 2025: 83.0%. 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 Pro cheaper than Grok 4.6?

Gemini 2.5 Pro is 1.6x cheaper for input tokens. Gemini 2.5 Pro costs $1.25/M input and $10.00/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 Pro and Grok 4.6?

Gemini 2.5 Pro 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 Pro and Grok 4.6?

Key differences include context window (1.0M vs 500K), input pricing ($1.25 vs $2.00/M). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 2.5 Pro and Grok 4.6?

Gemini 2.5 Pro is developed by Google and Grok 4.6 is developed by xAI.

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