GPT-5.4 vs Mimo v2 Pro
GPT-5.4 
Mimo v2 Pro Verdict
- GPT-5.4 leads on quality: 63.5 vs 60.6.
- GPT-5.4 is stronger in composite, human preference, instruction following, knowledge, long context, multimodal.
- Mimo v2 Pro is stronger in agents & tools, coding, reasoning.
- Mimo v2 Pro is 1.9× cheaper ($3.00 vs $5.63 per 1M blended).
| Metric | GPT-5.4 | Mimo v2 Pro |
|---|---|---|
| BenchLeader Index | 63.5 | 60.6 |
| Agents & tools score | 66.2 | 69.4 |
| Coding score | 51.6 | 54.7 |
| Composite score | 78.3 | 65.2 |
| Human preference score | 64.7 | 64.5 |
| Instruction following score | 71.9 | 67.5 |
| Knowledge score | 66.9 | 66.3 |
| Long context score | 67.6 | 60.5 |
| Multimodal score | 64.0 | – |
| Reasoning score | 62.6 | 65.2 |
| Blended price $/M | $5.63 | $3.00 |
| Output speed | 129 tok/s | – |
| Time to first answer | 124.6 s | – |
| Context window | 1.1M | 1.0M |
| Terminal-Bench | 81.8% | – |
| APEX-Agents | 34.9% | – |
| Epoch Capabilities Index | 156.9 | – |
| LMArena Text | 1466 | 1448 |
| LMArena Hard Prompts | 1488 | 1476 |
| LMArena Coding | 1514 | 1503 |
| LMArena WebDev | 1386 | 1433 |
| LMArena Vision | 1293 | – |
| AA Intelligence Index | 39.0 | 28.6 |
| IFBench | 74.0% | 68.8% |
| AA-LCR | 82.0% | 68.3% |
| MMMU-Pro | 78.4% | – |
| AA-Omniscience | 5.8 | 4.6 |
| Terminal-Bench Hard | 57.6% | 40.9% |
| GPQA Diamond (AA) | 92.0% | 87.0% |
| Humanity's Last Exam (AA) | 43.7% | 30.4% |
| τ²-Bench Telecom (AA) | 87.1% | 95.0% |
| HiL-Bench | 9.7% | – |
| EQ-Bench 4 | 1272 | – |
| Kagi LLM Benchmark | 63.8% | – |
Data as of 2026-09-10. Best configuration of each model; every score links to its source on the model pages.
GPT-5.4 vs Mimo v2 Pro: questions
- Is GPT-5.4 better than Mimo v2 Pro?
- GPT-5.4 leads on quality: 63.5 vs 60.6. The BenchLeader Index combines every independent quality benchmark; GPT-5.4 is ahead overall as of 2026-09-10, but check the category scores for your use.
- Is GPT-5.4 better than Mimo v2 Pro for coding?
- Mimo v2 Pro scores higher in coding (55 vs 52 on the category index, where 50 is average).
- Is GPT-5.4 better than Mimo v2 Pro for agentic tasks?
- Mimo v2 Pro scores higher in agentic tasks (69 vs 66 on the category index, where 50 is average).
- Which is cheaper, GPT-5.4 or Mimo v2 Pro?
- Mimo v2 Pro is cheaper: $3.00 against $5.63 per million tokens, blended at three input tokens per output token.
- Which has the larger context window?
- GPT-5.4 accepts more context: 1.1M against 1.0M tokens.