Compare/Step 3.5 Flash 2603 vs MiMo-V2-Flash (Feb 2026)

Step 3.5 Flash 2603vsMiMo-V2-Flash (Feb 2026)

Side-by-side comparison of pricing, 12 benchmarks, and generation speed.

StepFun

Step 3.5 Flash 2603

Input
$0.1/M
Output
$0.3/M
Speed
180 tok/s
TTFT
0.92s
Xiaomi

MiMo-V2-Flash (Feb 2026)

Input
$0.1/M
Output
$0.3/M
Speed
TTFT

Winner by Category

Cheaper
Tie
Faster (tok/s)
Step 3.5 Flash 2603
Lower Latency
MiMo-V2-Flash (Feb 2026)
Benchmarks (3-3)
Tie

Pricing Comparison

MetricStep 3.5 Flash 2603MiMo-V2-Flash (Feb 2026)
Input ($/M tokens)$0.1$0.1
Output ($/M tokens)$0.3$0.3
Cost for 1M input + 100K output tokens:
Step 3.5 Flash 2603$0.13
MiMo-V2-Flash (Feb 2026)$0.13

Speed Comparison

Output Speed (tokens/s) — higher is better
Step 3.5 Flash 2603
180 tok/s
MiMo-V2-Flash (Feb 2026)
Time to First Token (seconds) — lower is better
Step 3.5 Flash 2603
0.92s
MiMo-V2-Flash (Feb 2026)

Benchmark Comparison

Data from Artificial Analysis API — 12 benchmarks

Intelligence Index
26.033.2
Coding Index
Math Index
GPQA Diamond
82.6%83.5%
MMLU-Pro
LiveCodeBench
AIME 2025
MATH-500
Humanity's Last Exam
22.6%20.0%
SciCode
38.5%38.3%
IFBench
66.5%71.8%
TerminalBench
32.6%31.1%
Step 3.5 Flash 26033 wins
3 winsMiMo-V2-Flash (Feb 2026)

Frequently Asked Questions

Which is cheaper, Step 3.5 Flash 2603 or MiMo-V2-Flash (Feb 2026)?

Both models have similar pricing. Check the detailed breakdown above for input vs output token costs.

Which model performs better on benchmarks?

It's a tie — both models win 3 benchmarks each across 12 evaluated categories. See the detailed benchmark chart above for per-category results.

Which is faster for real-time applications?

Step 3.5 Flash 2603 generates tokens faster at 180 tok/s vs 0 tok/s. However, MiMo-V2-Flash (Feb 2026) has lower time-to-first-token (0.00s vs 0.92s).

When should I use Step 3.5 Flash 2603 vs MiMo-V2-Flash (Feb 2026)?

Choose based on your priorities: both are similarly priced, both perform similarly on benchmarks, and Step 3.5 Flash 2603 for faster generation. For latency-sensitive apps, check the TTFT comparison above.