Seed-Coder 8B Reasoning
Seed-Coder 8B Reasoning is a released coding model with open-source; evaluate it while provider pricing coverage matures.
Use it for
- Teams evaluating coding
- Workloads that can use a 66k context window
Do not use it for
- Cost-sensitive launches that need sourced token pricing
- Vision or document-understanding workloads
- Strict JSON or tool-calling flows
- Family
- Seed-Coder
- Released
- 2025-05-19
- Context
- 66k
- Parameters
- 8B
- Architecture
- Decoder Only
- Specialization
- code
- Openness
- Open source
- License
- MITOSI-approvedCommercial use: permitted
- Training
- Fine-tuned
No tracked provider token pricing is available yet.
About
Seed-Coder-8B-Reasoning is the RL-trained reasoning variant of Seed-Coder, leveraging Long-Chain-of-Thought (LongCoT) reinforcement learning to improve multi-step code reasoning capabilities. Achieves state-of-the-art performance among open-source ~8B code models. Available in FP32 and BF16 precision. 8B parameters, 64K context, MIT license, open weights on Hugging Face.
Seed-Coder 8B Reasoning is an open-source model in the Seed-Coder family. The structured metadata tracks a 66k-token context window and reasoning. No headline benchmark score is tracked for Seed-Coder 8B Reasoning yet.
Top use-case fit: coding, agents, and build tasks
Coding
Included by capability and metadata signals in the decision map.
Provider price ladder
No tracked provider token pricing is available for this model yet.
Capabilities
Benchmark peer barsfor Coding
No task-mapped benchmark peers are available for this model yet.
Migration checks
No linked migration route is available for this model yet.
No tracked provider token pricing is available yet.