Qwen3 Max vs Claude Sonnet 4.5 vs Claude Haiku 4.5
Too close to call on our weighted score (Claude Haiku 4.5 58, Claude Sonnet 4.5 55, Qwen3 Max 50). The right pick depends on what you value most.
Alibaba (Qwen)Qwen3 Max
50/100- ECI142.4
- Price$1.20 / $6.00
- Context262K
AnthropicClaude Sonnet 4.5
55/100- ECI146.8
- Price$3.00 / $15.00
- Context200K
- Anthropic
Claude Haiku 4.5
58/100- ECI142.4
- Price$1.00 / $5.00
- Context200K
Too close to call
It is close. Our weighted score puts them within 3 points (Claude Haiku 4.5 58/100, Claude Sonnet 4.5 55/100, Qwen3 Max 50/100), so choose by what matters most for your work: Claude Sonnet 4.5 for raw capability, Claude Haiku 4.5 on price and Qwen3 Max for long inputs. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.
- CapabilityClaude Sonnet 4.5Capabilities Index (ECI): Claude Sonnet 4.5 146.8 · Claude Haiku 4.5 142.4 · Qwen3 Max 142.4
- Lowest priceClaude Haiku 4.5Claude Haiku 4.5 $2.00 · Qwen3 Max $2.40 · Claude Sonnet 4.5 $6.00 per 1M tokens (3:1 blend)
- Longest contextQwen3 MaxQwen3 Max 262,144 · Claude Sonnet 4.5 200,000 · Claude Haiku 4.5 200,000 tokens
- Widest inputsClaude Sonnet 4.5 and Claude Haiku 4.5Qwen3 Max: Text · Claude Sonnet 4.5: Text, Images, PDFs · Claude Haiku 4.5: Text, Images, PDFs
- Self-hostingNo open weightsAll three are available only through APIs
| Measure | Weight | Qwen3 Max | Claude Sonnet 4.5 | Claude Haiku 4.5 |
|---|---|---|---|---|
| CapabilityCapabilities Index (ECI) | 50% | 68 | 74 | 69 |
| Price | 25% | 32 | 13 | 36 |
| Inputs & features | 15% | 25 | 80 | 80 |
| Context window | 10% | 37 | 32 | 32 |
| Overall | 100% | 50/100 | 55/100 | 58/100 |
Every spec in one table
Highlighted cells lead their row. Dashes mean the data is not published.
| Specification | Qwen3 MaxAlibaba (Qwen) | Claude Sonnet 4.5Anthropic | Claude Haiku 4.5Anthropic |
|---|---|---|---|
| Capability | |||
| Capabilities Index (ECI) | 142.4 | 146.8 (best) | 142.4 |
| ECI rank | #91 of 148 | #64 of 148 (best) | #90 of 148 |
| GPQA DiamondGraduate-level science questions | 72.6% | 82.3% (best) | 71.2% |
| FrontierMath Tiers 1–3Research-level mathematics | 19.0% | 23.9% (best) | — |
| OTIS Mock AIME 2024–2025Competition mathematics | 73.3% | 77.8% (best) | 66.7% |
| SWE-bench VerifiedFixing real GitHub issues | — | 71.3% | — |
| SimpleQA VerifiedShort factual questions | 48.8% (best) | 30.7% | 13.2% |
| Price per million tokens | |||
| Input | $1.20 | $3.00 | $1.00 (best) |
| Output | $6.00 | $15.00 | $5.00 (best) |
| Cached input | — | $0.30 | $0.10 (best) |
| Blended (3:1) | $2.40 | $6.00 | $2.00 (best) |
| Long-context rate | Same rate | Same rate | Same rate |
| Price source | Official Alibaba API | Official Anthropic API | Official Anthropic API |
| Limits | |||
| Context window | 262,144 tokens (best) | 200,000 tokens | 200,000 tokens |
| Max output | 65,536 tokens (best) | 64,000 tokens | 64,000 tokens |
| Inputs and features | |||
| Text | Yes | Yes | Yes |
| Images | No | Yes | Yes |
| PDFs | No | Yes | Yes |
| Audio | No | No | No |
| Video | No | No | No |
| Reasoning | No | Yes | Yes |
| Tool calling | Yes | Yes | Yes |
| Structured output | No | Yes | Yes |
| Availability | |||
| Weights | Proprietary | Proprietary | Proprietary |
| API model ID | qwen3-max | claude-sonnet-4-5 | claude-haiku-4-5 |
| API providers | 16 | 28 | 34 (best) |
| Released | Sep 23, 2025 | Sep 29, 2025 | Oct 15, 2025 |
| Knowledge cutoff | Apr 2025 | Jul 31, 2025 | Feb 28, 2025 |
What would a month cost?
Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.
- Qwen3 Max$24.00
- Claude Sonnet 4.5$60.00
- Claude Haiku 4.5$20.00
Which should you choose?
Which is better: Qwen3 Max, Claude Sonnet 4.5 or Claude Haiku 4.5?
It is close. Our weighted score puts them within 3 points (Claude Haiku 4.5 58/100, Claude Sonnet 4.5 55/100, Qwen3 Max 50/100), so choose by what matters most for your work: Claude Sonnet 4.5 for raw capability, Claude Haiku 4.5 on price and Qwen3 Max for long inputs. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.
Which is cheaper, Qwen3 Max, Claude Sonnet 4.5 or Claude Haiku 4.5?
Claude Haiku 4.5 is cheaper at $1.00 input / $5.00 output per million tokens (official Anthropic API price). Qwen3 Max costs $1.20 input / $6.00 output per million tokens (official Alibaba API price); Claude Sonnet 4.5 costs $3.00 input / $15.00 output per million tokens (official Anthropic API price). At a typical mix of three input tokens to one output token, that is $2.00 per million tokens for Claude Haiku 4.5 versus $2.40 for Qwen3 Max (1.2× as much) and $6.00 for Claude Sonnet 4.5 (3× as much).
Which scores higher on benchmarks?
Claude Sonnet 4.5 scores higher on the Capabilities Index (ECI): Claude Sonnet 4.5 146.8 (#64 of 148), Claude Haiku 4.5 142.4 (#90 of 148) and Qwen3 Max 142.4 (#91 of 148). Their confidence ranges do not overlap (145.3–148.5 vs 139.5–144.3), so the gap is a real one. On individual benchmarks: GPQA Diamond — Claude Sonnet 4.5 82.3%, Qwen3 Max 72.6%, Claude Haiku 4.5 71.2%; OTIS Mock AIME 2024–2025 — Claude Sonnet 4.5 77.8%, Qwen3 Max 73.3%, Claude Haiku 4.5 66.7%; SimpleQA Verified — Qwen3 Max 48.8%, Claude Sonnet 4.5 30.7%, Claude Haiku 4.5 13.2%.
Which is better for coding?
There are no published SWE-bench Verified results for Qwen3 Max and Claude Haiku 4.5 yet, so there is no like-for-like coding score. On overall capability, Claude Sonnet 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 Max has the largest context window at 262,144 tokens, against 200,000 for Claude Sonnet 4.5 and 200,000 for Claude Haiku 4.5. Maximum output per response: Qwen3 Max up to 65,536, Claude Sonnet 4.5 up to 64,000, Claude Haiku 4.5 up to 64,000 tokens.
Which can read images, PDFs, audio or video?
Qwen3 Max accepts text; Claude Sonnet 4.5 accepts text, images and PDFs; Claude Haiku 4.5 accepts text, images and PDFs. Claude Sonnet 4.5 handles the widest range of inputs.
Are any of these open source?
No. Qwen3 Max, Claude Sonnet 4.5 and Claude Haiku 4.5 are proprietary and only available through APIs and apps.
Which is newer?
Claude Haiku 4.5 is the newest, released Oct 15, 2025. Claude Sonnet 4.5 came out Sep 29, 2025; Qwen3 Max came out Sep 23, 2025. Knowledge cutoff: Qwen3 Max Apr 2025, Claude Sonnet 4.5 Jul 31, 2025, 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 Oct 4, 2026.
