Trendyol Asure 12B vs Step 3.5 Flash 2603 vs Seed 2.0 Lite
Seed 2.0 Lite comes out ahead, 73 to 62 and 54 on our weighted score, though Step 3.5 Flash 2603 is 25% cheaper per token.
Trendyol
Trendyol Asure 12B
54/100- ECI—
- Price$0.10 / $0.50
- Context131K
StepFunStep 3.5 Flash 2603
62/100- ECI—
- Price$0.10 / $0.30
- Context256K
- Our pick
ByteDance SeedSeed 2.0 Lite
73/100- ECI—
- Price$0.089 / $0.534
- Context256K
Seed 2.0 Lite is our pick
Seed 2.0 Lite is the better all-round choice, scoring 73/100 against Step 3.5 Flash 2603 (62) and Trendyol Asure 12B (54). It leads on inputs & features. Step 3.5 Flash 2603 wins on price. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.
- CapabilityNot enough dataNo independent benchmark covers every model here yet
- Lowest priceStep 3.5 Flash 2603Step 3.5 Flash 2603 $0.15 · Trendyol Asure 12B $0.20 · Seed 2.0 Lite $0.20 per 1M tokens (3:1 blend)
- Longest contextStep 3.5 Flash 2603 and Seed 2.0 LiteStep 3.5 Flash 2603 256,000 · Seed 2.0 Lite 256,000 · Trendyol Asure 12B 131,072 tokens
- Widest inputsSeed 2.0 LiteTrendyol Asure 12B: Text, Images · Step 3.5 Flash 2603: Text · Seed 2.0 Lite: Text, Images, Video
- Self-hostingTrendyol Asure 12B and Step 3.5 Flash 2603Publishes downloadable weights (Gemma)
| Measure | Weight | Trendyol Asure 12B | Step 3.5 Flash 2603 | Seed 2.0 Lite |
|---|---|---|---|---|
| Price | 50% | 83 | 89 | 83 |
| Inputs & features | 30% | 25 | 35 | 80 |
| Context window | 20% | 24 | 36 | 36 |
| Overall | 100% | 54/100 | 62/100 | 73/100 |
Left out because at least one model lacks the data: capability. The remaining weights were rescaled.
Every spec in one table
Highlighted cells lead their row. Dashes mean the data is not published.
| Specification | Trendyol Asure 12BTrendyol | Step 3.5 Flash 2603StepFun | Seed 2.0 LiteByteDance Seed |
|---|---|---|---|
| Capability | |||
| Capabilities Index (ECI) | — | — | — |
| ECI rank | — | — | — |
| Price per million tokens | |||
| Input | $0.10 | $0.10 | $0.089 (best) |
| Output | $0.50 | $0.30 (best) | $0.534 |
| Cached input | — | $0.02 | $0.018 (best) |
| Blended (3:1) | $0.20 | $0.15 (best) | $0.20 |
| Long-context rate | Same rate | Same rate | Over 32K: $0.134 / $0.802 |
| Price source | Median of 1 providers | Official StepFun (Global) API | Official Volcengine Ark API |
| Limits | |||
| Context window | 131,072 tokens | 256,000 tokens (best) | 256,000 tokens (best) |
| Max output | — | 256,000 tokens (best) | 32,000 tokens |
| Inputs and features | |||
| Text | Yes | Yes | Yes |
| Images | Yes | No | Yes |
| PDFs | No | No | No |
| Audio | No | No | No |
| Video | No | No | Yes |
| Reasoning | No | Yeslow · high | Yesminimal · low · medium · high · xhigh · max |
| Tool calling | No | Yes | Yes |
| Structured output | No | No | Yes |
| Availability | |||
| Weights | OpenGemma | Open | Proprietary |
| API model ID | — | step-3.5-flash-2603 | doubao-seed-2-0-lite-260428 |
| API providers | 1 | 3 | 6 (best) |
| Released | Feb 19, 2026 | Apr 2, 2026 | Feb 14, 2026 |
| Knowledge cutoff | — | Jan 2025 | — |
What would a month cost?
Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.
- Trendyol Asure 12B$2.00
- Step 3.5 Flash 2603$1.60
- Seed 2.0 Lite$1.96
Which should you choose?
Which is better: Trendyol Asure 12B, Step 3.5 Flash 2603 or Seed 2.0 Lite?
Seed 2.0 Lite is the better all-round choice, scoring 73/100 against Step 3.5 Flash 2603 (62) and Trendyol Asure 12B (54). It leads on inputs & features. Step 3.5 Flash 2603 wins on price. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.
Which is cheaper, Trendyol Asure 12B, Step 3.5 Flash 2603 or Seed 2.0 Lite?
Step 3.5 Flash 2603 is cheaper at $0.10 input / $0.30 output per million tokens (official StepFun (Global) API price). Trendyol Asure 12B costs $0.10 input / $0.50 output per million tokens (median across 1 API provider); Seed 2.0 Lite costs $0.089 input / $0.534 output per million tokens (official Volcengine Ark API price). At a typical mix of three input tokens to one output token, that is $0.15 per million tokens for Step 3.5 Flash 2603 versus $0.20 for Trendyol Asure 12B (1.3× as much) and $0.20 for Seed 2.0 Lite (1.3× as much).
Which scores higher on benchmarks?
There is no independent benchmark that covers all three models yet. Trendyol Asure 12B has not been scored yet, Step 3.5 Flash 2603 has not been scored yet and Seed 2.0 Lite has not been scored yet.
Which is better for coding?
There are no published SWE-bench Verified results for Trendyol Asure 12B, Step 3.5 Flash 2603 and Seed 2.0 Lite yet, so there is no like-for-like coding score. Test both on a sample of your own tasks. Note that Trendyol Asure 12B does not support tool calling, which most coding agents need.
Which has the bigger context window?
Step 3.5 Flash 2603 and Seed 2.0 Lite have the largest context windows (256,000 and 256,000 tokens), against 131,072 for Trendyol Asure 12B. Maximum output per response: Step 3.5 Flash 2603 up to 256,000, Seed 2.0 Lite up to 32,000 tokens.
Which can read images, PDFs, audio or video?
Trendyol Asure 12B accepts text and images; Step 3.5 Flash 2603 accepts text; Seed 2.0 Lite accepts text, images and video. Seed 2.0 Lite handles the widest range of inputs.
Are any of these open source?
Trendyol Asure 12B and Step 3.5 Flash 2603 publishes its weights (Gemma) and can be self-hosted; Seed 2.0 Lite is proprietary.
Which is newer?
Step 3.5 Flash 2603 is the newest, released Apr 2, 2026. Trendyol Asure 12B came out Feb 19, 2026; Seed 2.0 Lite came out Feb 14, 2026. Knowledge cutoff: Step 3.5 Flash 2603 Jan 2025.
How do you decide the winner?
Each model gets a 0–100 score on capability (50%, independent benchmark results); price (25%, blended price per million tokens (3 input : 1 output), log scale); inputs & features (15%, image, PDF, audio and video input, tool calling, structured output and reasoning); context window (10%, maximum tokens per request, log scale). Dimensions missing for any model are dropped and the remaining weights rescaled, so every model is judged on the same evidence. Specs and prices come from public model listings and the labs’ own API pages; capability scores come from independent benchmark runs. Data updated Oct 4, 2026.
