Seed-2.0-Lite vs Step 3.7 Flash

Compare Seed-2.0-Lite from bytedance-seed and Step 3.7 Flash from stepfun on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.

Seed-2.0-Lite vs Step 3.7 Flash: side-by-side summary

Seed-2.0-Lite and Step 3.7 Flash are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Seed-2.0-Lite, from bytedance-seed, has a 262,144-token context window and is priced at $0.25/M tokens input, $2/M tokens output on OpenRouter.

Step 3.7 Flash, from stepfun, has a 262,144-token context window and is priced at $0.20/M tokens input, $1.15/M tokens output on OpenRouter.

Context window

Seed-2.0-Lite: 262,144 tokens
Step 3.7 Flash: 262,144 tokens

Price

Seed-2.0-Lite: $0.25/M tokens input, $2/M tokens output
Step 3.7 Flash: $0.20/M tokens input, $1.15/M tokens output

Provided by

Seed-2.0-Lite: bytedance-seed
Step 3.7 Flash: stepfun

Seed-2.0-Lite vs Step 3.7 Flash at a glance

Seed-2.0-Lite vs Step 3.7 Flash comparison
Attribute	Seed-2.0-Lite	Step 3.7 Flash
Input price	$0.25/M tokens	$0.20/M tokens
Output price	$2/M tokens	$1.15/M tokens
Context window	262,144 tokens	262,144 tokens
Intelligence Index	Not available	19.5
Coding Index	Not available	39.6
Agentic Index	Not available	Not available
Latency (p50)	1.00 s	4.68 s
Throughput (p50)	54.0 tok/s	49.0 tok/s

Benchmark data updated Oct 13, 2026

Frequently asked questions

Which has the longer context window, Seed-2.0-Lite or Step 3.7 Flash?

Seed-2.0-Lite and Step 3.7 Flash have the same context window of 262,144 tokens.

Which is faster, Seed-2.0-Lite or Step 3.7 Flash?

Seed-2.0-Lite is faster on OpenRouter, generating a median 54.0 tokens per second compared with 49.0 tokens per second for Step 3.7 Flash.

Seed-2.0-Lite vs Step 3.7 Flash

Seed-2.0-Lite vs Step 3.7 Flash

Overview