Pairwise benchmark snapshot · Aug 17, 2026noindex (thin pair)
In this head-to-head showdown, OpenAI: GPT-3.5 Turbo (older v0613) is more budget-friendly at $2/1M per 1M output tokens. Review the complete breakdown below to determine which model best fits your performance and budget requirements.
Auto-discovered from OpenRouter (openai/gpt-3.5-turbo-0613). Preview until a second source matches.
ByteDance Seed 2.1 Turbo, listed on public model timelines as an Aug 10 2026 API drop.
Single model data
No latency data
$2 / 1M output
Relative percentile scores computed across all active models in the benchmark catalog.
Each spoke is a skill. Farther from the center is better (0–100th percentile). Tap any dot to inspect details.
Category wins across reasoning intelligence, generation speed, and token cost.
Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy
Generation throughput and time to first token responsiveness
Cost per million tokens and max context window length
| Benchmark | OpenAI: GPT-3.5 Turbo (older v0613) | Seed 2.1 Turbo | Advantage Delta |
|---|---|---|---|
| Preference Elo | — | — | |
| Coding Elo | — | — | |
| LiveBench | — | — | |
| SWE-bench | — | — | |
| GPQA Diamond | — | — | |
| Time to first token | — | — | |
| Output speed | — | 160 tok/s | — |
| Input price | $0.5/1M | Seed 2.1 Turbo (+$0.5/1M) | |
| Output price | $2.5/1M | OpenAI: GPT-3.5 Turbo (older v0613) (+$0.5/1M) | |
| Context window | Seed 2.1 Turbo (+258k) |
Simulate monthly production API costs in USD (US Dollar).
Seed 2.1 Turbo is estimated to save $10.00/month ($120/year).
Need SWE-bench on both sides.
Lower output list price ($2/1M).
Need TTFT on both sides.
Larger window (262k).
Seed 2.1 Turbo is the side marked multimodal in the catalog.
| Target Workload | Recommended Pick | Evaluation Rationale |
|---|---|---|
| Repo / coding agents | insufficient data | Need SWE-bench on both sides. |
| High-volume chat | OpenAI: GPT-3.5 Turbo (older v0613) | Lower output list price ($2/1M). |
| Voice / low-latency UI | insufficient data | Need TTFT on both sides. |
| Long-document RAG | Seed 2.1 Turbo | Larger window (262k). |
| Screenshots / vision | Seed 2.1 Turbo | Seed 2.1 Turbo is the side marked multimodal in the catalog. |
No comments posted on this matchup yet. Be the first to share an evaluation note!
The real PNG is generated at /compare/gpt-3-5-turbo-0613-vs-seed-2-1-turbo/opengraph-image for crawlers.
Verified head-to-head card
