Claude Opus 4.8 Max
| Released | 2026-05-28 |
|---|---|
| Price per 1M | $5.00 in · $25.00 out |
| Overall score | 60.4 · rank 87 |
| Context window | 1,000,000 tokens |
| Provider | Anthropic |
| Weights | Proprietary |
| Configuration | Max |
Scores
| Dimension | Score | Rank | Benchmarks |
|---|---|---|---|
| Overall: Balanced | 60.4 | 87 | 31 |
| Overall: Coding | 60.2 | 89 | 22 |
| Overall: Reasoning | 61.3 | 89 | 13 |
| Overall: Agentic work | 60.3 | 94 | 21 |
| Overall: Frontend | 59.8 | 75 | 9 |
| Coding | 60.1 | 85 | 7 |
| Agents | 59.9 | 78 | 9 |
| Reasoning | 62.1 | 85 | 5 |
| Math | 61.3 | 38 | 5 |
| Knowledge | 59.5 | 34 | 3 |
| Frontend | 59.8 | 41 | 1 |
| Multimodal | 59.0 | 43 | 1 |
| Value vs price | +3.5 | 159 |
Evidence
Coding 60.1 ±1.2
| Benchmark | Result | Source | Date |
|---|---|---|---|
| DeepSWE | 59.0% | Epoch AI | 2026-11-11 |
| FrontierCode | 46.5% | Epoch AI | 2026-11-11 |
| MirrorCode | 65.6% | Epoch AI | 2026-10-21 |
| SWE-bench Verified (Vals run) | 88.6% | Vals AI | 2026-09-01 |
| SciCode | 53.5% | Epoch AI | 2026-11-11 |
| LiveCodeBench (Vals run) | 87.8% | Vals AI | 2026-09-01 |
| ProgramBench | 1.0% | Vals AI | 2026-11-09 |
Agents 59.9 ±0.7
| Benchmark | Result | Source | Date |
|---|---|---|---|
| OSWorld 2.0 | 20.6% | Epoch AI | 2026-11-11 |
| Terminal-Bench 4 | 23.6% | Terminal-Bench | 2026-05-28 |
| Terminal-Bench-Science | 4.3% | Vals AI | 2026-11-09 |
| Terminal-Bench 4.0 (Vals run) | 23.2% | Vals AI | 2026-11-09 |
| APEX-Agents | 48.9% | Epoch AI | 2026-11-11 |
| Terminal-Bench 2.1 (Vals run) | 71.9% | Vals AI | 2026-10-01 |
| tau2-bench Banking Knowledge | 39.7% | tau2-bench | 2026-07-23 |
| Tax Agent Bench | 30.0% | Vals AI | 2026-11-09 |
| SkillsBench | 59.2% | Vals AI | 2026-10-29 |
| Vending-Bench 2 | $2,992 | Epoch AI | 2026-11-11 |
Reasoning 62.1 ±2.5
| Benchmark | Result | Source | Date |
|---|---|---|---|
| CritPt | 20.9% | Epoch AI | 2026-11-11 |
| ARC-AGI-1 (ARC Prize verified) | 92.5% | ARC Prize | 2026-11-11 |
| ARC-AGI-1 | 92.5% | Epoch AI | 2026-11-11 |
| GPQA Diamond | 91.0% | Epoch AI | 2026-06-07 |
| GPQA Diamond (Vals run) | 92.4% | Vals AI | 2026-09-01 |
| Chess Puzzles | 52.0% | Epoch AI | 2026-10-13 |
| Mystery Game Puzzles | 36.0% | Epoch AI | 2026-07-25 |
Math 61.3 ±1.2
| Benchmark | Result | Source | Date |
|---|---|---|---|
| FrontierMath Tiers 1-3 | 80.0% | Epoch AI | 2026-06-10 |
| FrontierMath Tier 4 | 56.1% | Epoch AI | 2026-06-10 |
| ProofBench | 69.0% | Epoch AI | 2026-11-11 |
| OTIS Mock AIME 2024-2025 | 98.3% | Epoch AI | 2026-06-07 |
| MathArena Final-Answer Competitions | 91.8% | MathArena | 2026-11-11 |
| FrontierMath Tiers 1-3 (2025 set) | 47.2% | Epoch AI | 2026-06-08 |
| FrontierMath Tier 4 (2025 set) | 31.3% | Epoch AI | 2026-06-08 |
Knowledge 59.5 ±3.6
| Benchmark | Result | Source | Date |
|---|---|---|---|
| SimpleQA Verified | 53.0% | Epoch AI | 2026-08-27 |
| MMLU-Pro (Vals run) | 89.6% | Vals AI | 2026-09-01 |
| Legal Research Bench | 43.8% | Vals AI | 2026-11-09 |
Frontend 59.8 ±0.8
| Benchmark | Result | Source | Date |
|---|---|---|---|
| Vibe Code Bench v1.1 | 82.7% | Vals AI | 2026-11-09 |
Multimodal 59.0 ±2.7
| Benchmark | Result | Source | Date |
|---|---|---|---|
| MMMU-Pro (Vals run) | 86.6% | Vals AI | 2026-09-01 |
Names matched to this model
claude-opus-4-8-max