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gpt-oss-20b vs Qwen3 Coder Next

How do these models stack up? Below is an expert side-by-side comparison of specifications, context window capacity, live pricing per million tokens, and standardized benchmark scores for gpt-oss-20b and Qwen3 Coder Next.

OpenAI

gpt-oss-20b

gpt-oss-20b is an open-weight 21B parameter model released by OpenAI under the Apache 2.0 license. It uses a Mixture-of-Experts (MoE) architecture with 3.6B active parameters per forward pass, optimized for...

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Alibaba

Qwen3 Coder Next

Qwen3-Coder-Next is an open-weight causal language model optimized for coding agents and local development workflows. It uses a sparse MoE design with 80B total parameters and only 3B activated per...

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Technical Specifications

Specificationgpt-oss-20bQwen3 Coder Next
ProviderOpenAIAlibaba
Context Window131,072 tokens262,144 tokens
Agent SuitabilityN/AN/A
Time to First Token (TTFT)N/AN/A
Deployment Modelmanaged apiself hostable
Production Stabilitystablestable
API AvailableYesYes
Released Date2025-08-052026-02-04

API Pricing Comparison

Input Price per Million Tokens

gpt-oss-20b

$0.03

Qwen3 Coder Next

$0.11

Output Price per Million Tokens

gpt-oss-20b

$0.14

Qwen3 Coder Next

$0.80

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Benchmark Performance Metrics

Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.

gpt-oss-20b Quirks & Gotchas

No developer gotchas reported.

Qwen3 Coder Next Quirks & Gotchas

No developer gotchas reported.