Model Comparison

Ring-1T
vs. Step 3.5 Flash 2603

Comparing 2 AI models · 10 benchmarks · InclusionAI, StepFun

Recommended Pick

StepFun logo Step 3.5 Flash 2603 10 metric wins

Strongest on: Throughput, Intelligence, Coding

Lowest Price

InclusionAI logo

Ring-1T

$0.00/1M input price

Best Reasoning

InclusionAI logo

Ring-1T

57.8 reasoning score

Blends available reasoning benchmarks

Best for Coding

StepFun logo

Step 3.5 Flash 2603

34.6 coding index

Composite Indices

Higher is better; speed and price are normalized

Standard Benchmarks

Only benchmarks with data are shown

Differences That Matter

Price gap

Ring-1T is ∞x cheaper on input tokens than Step 3.5 Flash 2603.

Reasoning gap

Ring-1T leads Step 3.5 Flash 2603 by 9.9 points on reasoning.

Coding gap

Step 3.5 Flash 2603 leads Ring-1T by 17.8 points on coding.

Top-pick rationale

Step 3.5 Flash 2603 wins 10 measurable categories, including Throughput, Intelligence, Coding, GPQA.

Live compare

Response Face-Off

Run one prompt through the selected models and compare response quality with live speed and cost context.

InclusionAI logo

Ring-1T

InclusionAI

Waiting

TTFT

Time

tok/s

Tokens

Cost

Waiting
StepFun logo

Step 3.5 Flash 2603

StepFun

Waiting

TTFT

Time

tok/s

Tokens

Cost

Waiting

Which answer was more useful?

AI Chat

Chat with 80+ models

Inference API

EU-hosted inference

Full Comparison

Metric
InclusionAI logo Ring-1T
InclusionAI
Top Pick
StepFun logo Step 3.5 Flash 2603
StepFun
Pricing per 1M tokens
Input Cost $0.00/1M$0.10/1M
Output Cost $0.00/1M$0.30/1M
Blended (3:1) $0.15/1M
Specifications
Organization InclusionAIStepFun
Release Date Oct 13, 2025Apr 2, 2026
Performance & Speed
Throughput 202.3 tok/s
TTFT 937ms
Latency 10825ms
Composite Indices
Value Score 100.0
Reasoning Score 57.847.9
Intelligence 22.838.5
Coding 16.834.6
Math 89.3
Standard Benchmarks
GPQA 77.4%82.6%
MMLU Pro 80.6%
HLE 10.2%22.6%
LiveCodeBench 64.3%
AIME 2025 89.3%
SciCode 36.7%38.5%
LCR 45.7%54.3%
IFBench 44.6%66.5%
TAU-bench v2 26.3%87.4%
TerminalBench Hard 6.8%32.6%

Key Takeaways

Ring-1T offers the best value at $0.00/1M, making it ideal for high-volume applications and cost-conscious projects.

Ring-1T has the strongest reasoning profile with a 57.8 reasoning score, combining the available reasoning-heavy benchmarks.

Step 3.5 Flash 2603 reaches a 34.6 coding index, making it the top choice for software development and code generation tasks.

All models support context windows of ∞+ tokens, suitable for processing lengthy documents and maintaining extended conversations.

When to Choose Each Model

InclusionAI logo

Ring-1T

  • Cost-sensitive applications
  • High-volume processing
  • Complex reasoning tasks
  • Research & analysis
StepFun logo

Step 3.5 Flash 2603

  • Code generation
  • Software development