Grok 4.1 Fast vs Qwen3 235B-A22B Thinking 2507
Grok 4.1 Fast comes out ahead, 66 to 42 on our weighted score, and it is the cheaper option too.
- Our pick
xAIGrok 4.1 Fast
66/100- ECI—
- Price$0.20 / $0.50
- Context2M
Alibaba (Qwen)Qwen3 235B-A22B Thinking 2507
42/100- ECI143.8
- Price$0.30 / $2.90
- Context262K
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Make it a three-way comparison.
Grok 4.1 Fast is our pick
Grok 4.1 Fast is the better all-round choice, scoring 66/100 against Qwen3 235B-A22B Thinking 2507 (42). It leads on price, inputs & features and context window. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.
- CapabilityNot enough dataNo independent benchmark covers every model here yet
- Lowest priceGrok 4.1 FastGrok 4.1 Fast $0.275 · Qwen3 235B-A22B Thinking 2507 $0.95 per 1M tokens (3:1 blend)
- Longest contextGrok 4.1 FastGrok 4.1 Fast 2,000,000 · Qwen3 235B-A22B Thinking 2507 262,144 tokens
- Widest inputsGrok 4.1 FastGrok 4.1 Fast: Text, Images · Qwen3 235B-A22B Thinking 2507: Text
- Self-hostingQwen3 235B-A22B Thinking 2507Publishes downloadable weights (Apache 2.0)
| Measure | Weight | Grok 4.1 Fast | Qwen3 235B-A22B Thinking 2507 |
|---|---|---|---|
| Price | 50% | 73 | 49 |
| Inputs & features | 30% | 50 | 35 |
| Context window | 20% | 72 | 37 |
| Overall | 100% | 66/100 | 42/100 |
Left out because at least one model lacks the data: capability. The remaining weights were rescaled.
Every spec in one table
Highlighted cells lead their row. Dashes mean the data is not published.
| Specification | Grok 4.1 FastxAI | Qwen3 235B-A22B Thinking 2507Alibaba (Qwen) |
|---|---|---|
| Capability | ||
| Capabilities Index (ECI) | — | 143.8 |
| ECI rank | — | #93 of 165 |
| GPQA DiamondGraduate-level science questions | — | 80.1% |
| OTIS Mock AIME 2024–2025Competition mathematics | — | 86.7% |
| SimpleQA VerifiedShort factual questions | — | 40.4% |
| Price per million tokens | ||
| Input | $0.20 (best) | $0.30 |
| Output | $0.50 (best) | $2.90 |
| Cached input | — | — |
| Blended (3:1) | $0.275 (best) | $0.95 |
| Long-context rate | Same rate | Same rate |
| Price source | Median of 6 providers | Median of 11 providers |
| Limits | ||
| Context window | 2,000,000 tokens (best) | 262,144 tokens |
| Max output | 30,000 tokens | 81,920 tokens (best) |
| Inputs and features | ||
| Text | Yes | Yes |
| Images | Yes | No |
| PDFs | No | No |
| Audio | No | No |
| Video | No | No |
| Reasoning | No | Yes |
| Tool calling | Yes | Yes |
| Structured output | No | No |
| Availability | ||
| Weights | Proprietary | OpenApache 2.0 |
| API model ID | — | — |
| API providers | 8 | 12 (best) |
| Released | Nov 19, 2025 | Jul 25, 2025 |
| Knowledge cutoff | — | — |
What would a month cost?
Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.
- Grok 4.1 Fast$3.00
- Qwen3 235B-A22B Thinking 2507$8.80
Which should you choose?
Which is better: Grok 4.1 Fast or Qwen3 235B-A22B Thinking 2507?
Grok 4.1 Fast is the better all-round choice, scoring 66/100 against Qwen3 235B-A22B Thinking 2507 (42). It leads on price, inputs & features and context window. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.
Which is cheaper, Grok 4.1 Fast or Qwen3 235B-A22B Thinking 2507?
Grok 4.1 Fast is cheaper at $0.20 input / $0.50 output per million tokens (median across 6 API providers). Qwen3 235B-A22B Thinking 2507 costs $0.30 input / $2.90 output per million tokens (median across 11 API providers). At a typical mix of three input tokens to one output token, that is $0.275 per million tokens for Grok 4.1 Fast versus $0.95 for Qwen3 235B-A22B Thinking 2507 (3.5× as much).
Which scores higher on benchmarks?
There is no independent benchmark that covers both models yet. Grok 4.1 Fast has not been scored yet and Qwen3 235B-A22B Thinking 2507 has an ECI of 143.8.
Which is better for coding?
There are no published SWE-bench Verified results for Grok 4.1 Fast and Qwen3 235B-A22B Thinking 2507 yet, so there is no like-for-like coding score. Test both on a sample of your own tasks. Both support tool calling for agent workflows.
Which has the bigger context window?
Grok 4.1 Fast has the largest context window at 2,000,000 tokens, against 262,144 for Qwen3 235B-A22B Thinking 2507. Maximum output per response: Grok 4.1 Fast up to 30,000, Qwen3 235B-A22B Thinking 2507 up to 81,920 tokens.
Which can read images, PDFs, audio or video?
Grok 4.1 Fast accepts text and images; Qwen3 235B-A22B Thinking 2507 accepts text. Grok 4.1 Fast handles the widest range of inputs.
Are any of these open source?
Qwen3 235B-A22B Thinking 2507 publishes its weights (Apache 2.0) and can be self-hosted; Grok 4.1 Fast is proprietary.
Which is newer?
Grok 4.1 Fast is the newest, released Nov 19, 2025. Qwen3 235B-A22B Thinking 2507 came out Jul 25, 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.
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