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Comparison · 3 models · Updated Nov 2, 2026

GPT OSS 20B vs Claude Haiku 4.5 vs Qwen3 30B-A3B Instruct 2507

Too close to call on our weighted score (GPT OSS 20B 61, Qwen3 30B-A3B Instruct 2507 59, Claude Haiku 4.5 57). The right pick depends on what you value most.

  1. OpenAI

    GPT OSS 20B

    Released Aug 5, 2025

    61/100
    • ECI137.8
    • Price$0.07 / $0.25
    • Context131K
    Full specs Remove GPT OSS 20B

  2. Anthropic

    Claude Haiku 4.5

    Released Oct 15, 2025

    57/100
    • ECI142.2
    • Price$1.00 / $5.00
    • Context200K
    Full specs Remove Claude Haiku 4.5

  3. Alibaba (Qwen)

    Qwen3 30B-A3B Instruct 2507

    Released Jul 28, 2025

    59/100
    • ECI137.3
    • Price$0.10 / $0.30
    • Context262K
    Full specs Remove Qwen3 30B-A3B Instruct 2507
01 — Verdict

Too close to call

It is close. Our weighted score puts them within 2 points (GPT OSS 20B 61/100, Qwen3 30B-A3B Instruct 2507 59/100, Claude Haiku 4.5 57/100), so choose by what matters most for your work: Claude Haiku 4.5 for raw capability, GPT OSS 20B on price and Qwen3 30B-A3B Instruct 2507 for long inputs. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

  • CapabilityClaude Haiku 4.5Capabilities Index (ECI): Claude Haiku 4.5 142.2 · GPT OSS 20B 137.8 · Qwen3 30B-A3B Instruct 2507 137.3
  • Lowest priceGPT OSS 20BGPT OSS 20B $0.115 · Qwen3 30B-A3B Instruct 2507 $0.15 · Claude Haiku 4.5 $2.00 per 1M tokens (3:1 blend)
  • Longest contextQwen3 30B-A3B Instruct 2507Qwen3 30B-A3B Instruct 2507 262,144 · Claude Haiku 4.5 200,000 · GPT OSS 20B 131,072 tokens
  • Widest inputsClaude Haiku 4.5GPT OSS 20B: Text · Claude Haiku 4.5: Text, Images, PDFs · Qwen3 30B-A3B Instruct 2507: Text
  • Self-hostingGPT OSS 20B and Qwen3 30B-A3B Instruct 2507Publishes downloadable weights (Apache 2.0)
How the score is built
MeasureWeightGPT OSS 20BClaude Haiku 4.5Qwen3 30B-A3B Instruct 2507
CapabilityCapabilities Index (ECI)50%616761
Price25%903485
Inputs & features15%358025
Context window10%253237
Overall100%61/10057/10059/100
02 — Side by side

Every spec in one table

Highlighted cells lead their row. Dashes mean the data is not published.

GPT OSS 20B vs Claude Haiku 4.5 vs Qwen3 30B-A3B Instruct 2507 specifications side by side
SpecificationGPT OSS 20BOpenAIClaude Haiku 4.5AnthropicQwen3 30B-A3B Instruct 2507Alibaba (Qwen)
Capability
Capabilities Index (ECI)137.8142.2 (best)137.3
ECI rank#122 of 165#102 of 165 (best)#124 of 165
GPQA DiamondGraduate-level science questions60.8%71.2% (best)55.6%
OTIS Mock AIME 2024–2025Competition mathematics65.3%66.7% (best)62.2%
SimpleQA VerifiedShort factual questions—13.2%—
Price per million tokens
Input$0.07 (best)$1.00$0.10
Output$0.25 (best)$5.00$0.30
Cached input—$0.10—
Blended (3:1)$0.115 (best)$2.00$0.15
Long-context rateSame rateSame rateSame rate
Price sourceMedian of 37 providersOfficial Anthropic APIMedian of 12 providers
Limits
Context window131,072 tokens200,000 tokens262,144 tokens (best)
Max output32,768 tokens64,000 tokens (best)16,384 tokens
Inputs and features
TextYesYesYes
ImagesNoYesNo
PDFsNoYesNo
AudioNoNoNo
VideoNoNoNo
ReasoningYesYesNo
Tool callingYesYesYes
Structured outputNoYesNo
Availability
WeightsOpenProprietaryOpenApache 2.0
API model ID—claude-haiku-4-5—
API providers4148 (best)14
ReleasedAug 5, 2025Oct 15, 2025Jul 28, 2025
Knowledge cutoffJun 2024Feb 28, 2025—
03 — Cost

What would a month cost?

Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.

  • GPT OSS 20B$1.20
  • Claude Haiku 4.5$20.00
  • Qwen3 30B-A3B Instruct 2507$1.60
04 — Questions

Which should you choose?

Which is better: GPT OSS 20B, Claude Haiku 4.5 or Qwen3 30B-A3B Instruct 2507?

It is close. Our weighted score puts them within 2 points (GPT OSS 20B 61/100, Qwen3 30B-A3B Instruct 2507 59/100, Claude Haiku 4.5 57/100), so choose by what matters most for your work: Claude Haiku 4.5 for raw capability, GPT OSS 20B on price and Qwen3 30B-A3B Instruct 2507 for long inputs. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

Which is cheaper, GPT OSS 20B, Claude Haiku 4.5 or Qwen3 30B-A3B Instruct 2507?

GPT OSS 20B is cheaper at $0.07 input / $0.25 output per million tokens (median across 37 API providers). Qwen3 30B-A3B Instruct 2507 costs $0.10 input / $0.30 output per million tokens (median across 12 API providers); Claude Haiku 4.5 costs $1.00 input / $5.00 output per million tokens (official Anthropic API price). At a typical mix of three input tokens to one output token, that is $0.115 per million tokens for GPT OSS 20B versus $0.15 for Qwen3 30B-A3B Instruct 2507 (1.3× as much) and $2.00 for Claude Haiku 4.5 (17× as much).

Which scores higher on benchmarks?

Claude Haiku 4.5 scores higher on the Capabilities Index (ECI): Claude Haiku 4.5 142.2 (#102 of 165), GPT OSS 20B 137.8 (#122 of 165) and Qwen3 30B-A3B Instruct 2507 137.3 (#124 of 165). The confidence ranges of the top two overlap (139.4–143.9 vs 133.1–139.7), so treat the gap as small. On individual benchmarks: GPQA Diamond — Claude Haiku 4.5 71.2%, GPT OSS 20B 60.8%, Qwen3 30B-A3B Instruct 2507 55.6%; OTIS Mock AIME 2024–2025 — Claude Haiku 4.5 66.7%, GPT OSS 20B 65.3%, Qwen3 30B-A3B Instruct 2507 62.2%.

Which is better for coding?

There are no published SWE-bench Verified results for GPT OSS 20B, Claude Haiku 4.5 and Qwen3 30B-A3B Instruct 2507 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.

Which has the bigger context window?

Qwen3 30B-A3B Instruct 2507 has the largest context window at 262,144 tokens, against 200,000 for Claude Haiku 4.5 and 131,072 for GPT OSS 20B. Maximum output per response: GPT OSS 20B up to 32,768, Claude Haiku 4.5 up to 64,000, Qwen3 30B-A3B Instruct 2507 up to 16,384 tokens.

Which can read images, PDFs, audio or video?

GPT OSS 20B accepts text; Claude Haiku 4.5 accepts text, images and PDFs; Qwen3 30B-A3B Instruct 2507 accepts text. Claude Haiku 4.5 handles the widest range of inputs.

Are any of these open source?

GPT OSS 20B and Qwen3 30B-A3B Instruct 2507 publishes its weights (Apache 2.0) and can be self-hosted; Claude Haiku 4.5 is proprietary.

Which is newer?

Claude Haiku 4.5 is the newest, released Oct 15, 2025. GPT OSS 20B came out Aug 5, 2025; Qwen3 30B-A3B Instruct 2507 came out Jul 28, 2025. Knowledge cutoff: GPT OSS 20B Jun 2024, Claude Haiku 4.5 Feb 28, 2025.

How do you decide the winner?

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 Nov 2, 2026.

05 — Keep comparing

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