Aquila Chat 2 70B Expressive vs Seed-OSS 36B Instruct
Aquila Chat 2 70B Expressive (2023) and Seed-OSS 36B Instruct (2025) are compact production models from Beijing Academy of Artificial Intelligence (BAAI) and ByteDance. Aquila Chat 2 70B Expressive ships a 2k-token context window, while Seed-OSS 36B Instruct ships a 4k-token context window. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.
Seed-OSS 36B Instruct is safer overall; choose Aquila Chat 2 70B Expressive when provider fit matters.
Decision scorecard
Local evidence first| Signal | Aquila Chat 2 70B Expressive | Seed-OSS 36B Instruct |
|---|---|---|
| Best for | general production evaluation | general production evaluation |
| Decision fit | General | General |
| Context window | 2k | 4k |
| Cheapest output | - | - |
| Provider routes | 0 tracked | 1 tracked |
| Shared benchmarks | 0 shared | 0 shared |
Decision tradeoffs
- Use Aquila Chat 2 70B Expressive when your own prompt tests beat the comparison signals; the local data does not show a decisive standalone advantage yet.
- Seed-OSS 36B Instruct has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Seed-OSS 36B Instruct has broader tracked provider coverage for fallback and route flexibility.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
Aquila Chat 2 70B Expressive
Unavailable
No complete token price in local provider data
Seed-OSS 36B Instruct
Unavailable
No complete token price in local provider data
Cost delta unavailable until both models have sourced input and output token prices.
Switch friction
- No overlapping tracked provider route is sourced for Aquila Chat 2 70B Expressive and Seed-OSS 36B Instruct; plan for SDK, billing, or endpoint changes.
- No overlapping tracked provider route is sourced for Seed-OSS 36B Instruct and Aquila Chat 2 70B Expressive; plan for SDK, billing, or endpoint changes.
Specs
| Specification | ||
|---|---|---|
| Released | 2023-11-02 | 2025-06-01 |
| Context window | 2k | 4k |
| Parameters | 70B | 36B |
| Architecture | Decoder Only | Decoder Only |
| License | Proprietary | Proprietary |
| Openness | Proprietary | Proprietary |
| Weights | Not released | Not released |
| Code | Unknown | Unknown |
| Commercial use | Commercial use: conditional | Commercial use: conditional |
| Knowledge cutoff | - | 2024-10 |
Pricing and availability
| Pricing attribute | Aquila Chat 2 70B Expressive | Seed-OSS 36B Instruct |
|---|---|---|
| Input price | - | - |
| Output price | - | - |
| Providers | - |
Pricing not yet sourced for either model.
Capabilities
| Capability | Aquila Chat 2 70B Expressive | Seed-OSS 36B Instruct |
|---|---|---|
| Vision | No | No |
| Multimodal | No | No |
| Reasoning | No | No |
| JSON / Tool use | No | No |
| Structured outputs | No | No |
| Code execution | No | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
No shared benchmark scores are currently available for this pair.
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Last reviewed: 2026-07-10. Data sourced from public model cards and provider documentation.