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Grok 4.7 vs Seed 1.8

Grok 4.7 leads the LLM Stats Score 48.0 to 34.1. Seed 1.8 is 4.4x cheaper per token.

xAI · ByteDance · Updated for 2026

Which is better?

Grok 4.7 leads the overall LLM Stats Score 48.0 to 34.1, ranking #25 overall.

On price, Seed 1.8 is roughly 4.4x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Grok 4.7 also accepts a larger context window (500,000 input tokens), making it the stronger choice for long documents and large codebases.

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

Choose Grok 4.7

  • overall performance matters — it scores 48.0 and ranks #25 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you process long inputs — it offers a 500,000 token context window
  • you want the most recent training data — it shipped Sep 2026

Choose Seed 1.8

  • cost matters — it's about 4.4x cheaper per token

At a glance

The differences that matter most.

Grok 4.7
xAI
Seed 1.8
ByteDance
Core performance indexes
LLM Stats Score
48.0
#25
34.1
#99
Reasoning
37.1
#74
33.5
#101
Coding
39.6
#14
19.7
#105
Agents
35.5
#21
14.7
#94
Cost, coverage & limits
Benchmark wins
—
—
Input price
$2.00 / M
$0.25 / M
Output price
$6.00 / M
$2.00 / M
Context window
500,000
256,000

Individual benchmarks

23 reported for Grok 4.7 · 57 for Seed 1.8

No common benchmarks found

Grok 4.7 and Seed 1.8don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

Seed 1.8 costs less

For input processing, Grok 4.7 ($2.00/1M tokens) is 8.0x more expensive than Seed 1.8 ($0.25/1M tokens).

For output processing, Grok 4.7 ($6.00/1M tokens) is 3.0x more expensive than Seed 1.8 ($2.00/1M tokens).

In conclusion, Grok 4.7 is more expensive than Seed 1.8.*

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

Lowest available price from all providers
Sun Sep 27 2026 • llm-stats.com
xAI
Grok 4.7
Input tokens$2.00
Output tokens$6.00
Best providerxAI
ByteDance
Seed 1.8
Input tokens$0.25
Output tokens$2.00
Best providerDeepinfra
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Grok 4.7 accepts 500,000 input tokens compared to Seed 1.8's 256,000 tokens. Only Seed 1.8 specifies output context (256,000 tokens).

xAI
Grok 4.7
Input500,000 tokens
Output- tokens
ByteDance
Seed 1.8
Input256,000 tokens
Output256,000 tokens
Sun Sep 27 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Grok 4.7 and Seed 1.8 support multimodal inputs.

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

Grok 4.7

Text
Images
Audio
Video

Seed 1.8

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.

Grok 4.7

Proprietary

Closed source

Seed 1.8

Proprietary

Closed source

Release Timeline

When each model was launched

Grok 4.7 was released on 2026-09-21, while Seed 1.8 was released on 2026-02-17.

Grok 4.7 is 7 months newer than Seed 1.8.

Grok 4.7

Sep 21, 2026

6 days ago

7mo newer
Seed 1.8

Feb 17, 2026

7 months ago

Knowledge Cutoff

When training data ends

Grok 4.7 has a documented knowledge cutoff of 2026-06-01, while Seed 1.8's cutoff date is not specified.

We can confirm Grok 4.7's training data extends to 2026-06-01, but cannot make a direct comparison without Seed 1.8's cutoff date.

Grok 4.7

Jun 2026

Seed 1.8

—

Provider Availability

Grok 4.7 is available from xAI. Seed 1.8 is available from DeepInfra.

Grok 4.7

xai logo
xAI
Input Price:Input: $2.00/1MOutput Price:Output: $6.00/1M

Seed 1.8

deepinfra logo
Deepinfra
Input Price:Input: $0.25/1MOutput Price:Output: $2.00/1M
* 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 Grok 4.7 and Seed 1.8 side-by-side, then vote on the output you prefer.

Grok 4.7
✓ Preferred
Seed 1.8
Open in Playground

FAQ

Common questions about Grok 4.7 vs Seed 1.8.

Which is better, Grok 4.7 or Seed 1.8?

Grok 4.7 leads the LLM Stats Score 48.0 to 34.1. Grok 4.7 is made by xAI and Seed 1.8 is made by ByteDance. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Grok 4.7 compare to Seed 1.8 in benchmarks?

Grok 4.7 scores BixBench MCQ: 88.4%, WMDP-Bio: 88.1%, WMDP-Cyber: 88.1%, WMDP-Chem: 84.9%, CyberGym: 80.3%. Seed 1.8 scores CountBench: 96.3%, AIME 2025: 94.3%, VLMsAreBlind: 93.0%, MMLU: 92.3%, AI2D: 89.1%.

Is Grok 4.7 cheaper than Seed 1.8?

Seed 1.8 is 8.0x cheaper for input tokens. Grok 4.7 costs $2.00/M input and $6.00/M output via xai. Seed 1.8 costs $0.25/M input and $2.00/M output via deepinfra.

What are the context window sizes for Grok 4.7 and Seed 1.8?

Grok 4.7 supports 500K tokens and Seed 1.8 supports 256K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Grok 4.7 and Seed 1.8?

Key differences include LLM Stats Score (48.0 vs 34.1), context window (500K vs 256K), input pricing ($2.00 vs $0.25/M). See the full comparison above for benchmark-by-benchmark results.

Who makes Grok 4.7 and Seed 1.8?

Grok 4.7 is developed by xAI and Seed 1.8 is developed by ByteDance.

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