Agnes 3.0 Flash vs GPT-6 Astra
Agnes 3.0 Flash 
GPT-6 Astra Verdict
- GPT-6 Astra (high) leads on quality: 71.9 vs 62.3.
- Agnes 3.0 Flash is stronger in agents & tools, long context.
- GPT-6 Astra (high) is stronger in composite, knowledge, reasoning, coding, maths, multimodal.
- Agnes 3.0 Flash is 267× cheaper ($0.075 vs $20.00 per 1M blended).
| Metric | Agnes 3.0 Flash | GPT-6 Astra (high) |
|---|---|---|
| BenchLeader Index | 62.3 | 71.9 |
| Agents & tools score | 76.8 | 64.9 |
| Composite score | 74.0 | 93.8 |
| Knowledge score | 59.1 | 85.1 |
| Long context score | 67.0 | 66.5 |
| Reasoning score | 71.1 | 81.9 |
| Coding score | – | 72.8 |
| Maths score | – | 79.5 |
| Multimodal score | – | 71.2 |
| Blended price $/M | $0.075 | $20.00 |
| Output speed | – | 47 tok/s |
| Time to first answer | – | 49.2 s |
| Context window | 1M | 1.1M |
| FrontierMath Tier 4 | – | 97.6% |
| Terminal-Bench | – | 57.9% |
| SciCode | – | 55.4% |
| WeirdML | – | 92.9% |
| AA Intelligence Index | 35.5 | 51.0 |
| AA-LCR | 81.0% | 80.0% |
| MMMU-Pro | – | 86.4% |
| AA-Omniscience | -10.6 | 43.7 |
| GPQA Diamond (AA) | 92.4% | 95.0% |
| Humanity's Last Exam (AA) | 38.5% | 53.1% |
| SciCode (AA) | 51.6% | 55.4% |
| ARC-AGI-1 | – | 98.5% |
| ARC-AGI-2 | – | 92.1% |
| ARC-AGI-3 | – | 99.9% |
| CritPt | 15.1% | 28.9% |
| GDPval (AA) | 53.7% | 51.5% |
| τ²-Bench Banking (AA) | 47.6% | 40.0% |
| MirrorCode | – | 46.7% |
| DeepSWE | – | 73.2% |
Data as of 2026-09-19. Best configuration of each model; every score links to its source on the model pages.
Agnes 3.0 Flash vs GPT-6 Astra: questions
- Is Agnes 3.0 Flash better than GPT-6 Astra?
- GPT-6 Astra (high) leads on quality: 71.9 vs 62.3. The BenchLeader Index combines every independent quality benchmark; GPT-6 Astra (high) is ahead overall as of 2026-09-19, but check the category scores for your use.
- Is Agnes 3.0 Flash better than GPT-6 Astra for agentic tasks?
- Agnes 3.0 Flash scores higher in agentic tasks (77 vs 65 on the category index, where 50 is average).
- Which is cheaper, Agnes 3.0 Flash or GPT-6 Astra?
- Agnes 3.0 Flash is cheaper: $0.075 against $20.00 per million tokens, blended at three input tokens per output token.
- Which has the larger context window?
- GPT-6 Astra accepts more context: 1.1M against 1M tokens.