GPT-4.1 vs Claude Haiku 4.5 vs Qwen3 32B

Claude Haiku 4.5 is the better all-round choice, scoring 58/100 against GPT-4.1 (53) and Qwen3 32B (51). It leads on capability and inputs & features. GPT-4.1 wins on context window. Qwen3 32B wins on price. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

Qwen3 32B is cheaper at $0.70 input / $2.80 output per million tokens (official Alibaba API price). Claude Haiku 4.5 costs $1.00 input / $5.00 output per million tokens (official Anthropic API price); GPT-4.1 costs $2.00 input / $8.00 output per million tokens (official OpenAI API price). At a typical mix of three input tokens to one output token, that is $1.23 per million tokens for Qwen3 32B versus $2.00 for Claude Haiku 4.5 (1.6× as much) and $3.50 for GPT-4.1 (2.9× as much).

Claude Haiku 4.5 scores higher on the Capabilities Index (ECI): Claude Haiku 4.5 142.4 (#90 of 148), Qwen3 32B 138.5 (#106 of 148) and GPT-4.1 136.8 (#111 of 148). The confidence ranges of the top two overlap (139.5–144.3 vs 135.1–140.4), so treat the gap as small. On individual benchmarks: GPQA Diamond — Claude Haiku 4.5 71.2%, GPT-4.1 66.9%, Qwen3 32B 65.7%; OTIS Mock AIME 2024–2025 — Qwen3 32B 66.9%, Claude Haiku 4.5 66.7%, GPT-4.1 38.3%.

There are no published SWE-bench Verified results for Claude Haiku 4.5 and Qwen3 32B yet, so there is no like-for-like coding score. On overall capability, Claude Haiku 4.5 leads, which tends to carry over to coding, but test on your own codebase. All three support tool calling for agent workflows.

GPT-4.1 has the largest context window at 1,047,576 tokens, against 200,000 for Claude Haiku 4.5 and 131,072 for Qwen3 32B. Maximum output per response: GPT-4.1 up to 32,768, Claude Haiku 4.5 up to 64,000, Qwen3 32B up to 16,384 tokens.

GPT-4.1 accepts text, images and PDFs; Claude Haiku 4.5 accepts text, images and PDFs; Qwen3 32B accepts text. GPT-4.1 handles the widest range of inputs.

Qwen3 32B publishes its weights and can be self-hosted; GPT-4.1 and Claude Haiku 4.5 is proprietary.

Claude Haiku 4.5 is the newest, released Oct 15, 2025. Qwen3 32B came out Apr 29, 2025; GPT-4.1 came out Apr 14, 2025. Knowledge cutoff: GPT-4.1 Apr 2024, Claude Haiku 4.5 Feb 28, 2025, Qwen3 32B Apr 2025.

Each model gets a 0–100 score on capability (50%, independent benchmark results); price (25%, blended price per million tokens (3 input : 1 output), log scale); inputs & features (15%, image, PDF, audio and video input, tool calling, structured output and reasoning); context window (10%, maximum tokens per request, log scale). Dimensions missing for any model are dropped and the remaining weights rescaled, so every model is judged on the same evidence. Specs and prices come from public model listings and the labs’ own API pages; capability scores come from independent benchmark runs. Data updated Oct 4, 2026.