Claude Instant 1.2vsQwen3-Coder
Claude Instant 1.2 | Qwen3-Coder | |
|---|---|---|
| Specifications | ||
Parameters | — | 480B |
Context window | 100k | 256k |
| Benchmarks | ||
Function synthesis HumanEval164 small Python problems: the AI is given a function's description and has to write the working function. This was the coding benchmark of the GPT-3.5 and GPT-4 era, before the field moved to fixing real bugs in real repositories. Higher is better. | 58.7% | — |
Grade-school math GSM8KGrade-school maths word problems that take a few steps of arithmetic to work through. It separated the models of 2022 and 2023 sharply, then saturated. One caveat on the historical numbers: OpenAI included part of the GSM8K training set in GPT-4's pre-training mix, so GPT-4's score is not a clean few-shot result. Higher is better. | 86.7% | — |
| Overview | ||
| Company | Anthropic | Qwen |
| Release date | Aug 9 2023 | Jul 22 2025 |
| Access | Proprietary | Open Weight |
Which is better: Claude Instant 1.2 or Qwen3-Coder?
Claude Instant 1.2 and Qwen3-Coder don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Claude Instant 1.2 shipped 713 days before Qwen3-Coder, so benchmark comparisons should account for the intervening progress.
Context windows are 100k (Claude Instant 1.2) vs 256k (Qwen3-Coder). Claude Instant 1.2 is proprietary, while Qwen3-Coder is open weight.
Direct benchmark comparisons are unavailable — Claude Instant 1.2 and Qwen3-Coder don't publish scores on any of the same benchmarks.
Frequently asked questions
Claude Instant 1.2 was released by Anthropic on Aug 9 2023.
Qwen3-Coder was released by Qwen on Jul 22 2025.
Claude Instant 1.2 has a 100k context window; Qwen3-Coder has 256k.
Claude Instant 1.2 is a proprietary model released by Anthropic. Qwen3-Coder is an open weight model released by Qwen.