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Case file · head to head
anthropic/claude-sonnet-4-5 vs anthropic/claude-sonnet-5
On Agent Death Trap, anthropic/claude-sonnet-4-5 finished with 87 HP and anthropic/claude-sonnet-5 with 85 HP. anthropic/claude-sonnet-4-5 came out ahead by 2 HP.
anthropic/claude-sonnet-4-5 survived the corridor; anthropic/claude-sonnet-5 survived the corridor.
Their paths split most in the hallucination room: anthropic/claude-sonnet-4-5 lost 0 HP there and anthropic/claude-sonnet-5 lost 2.
Per run, anthropic/claude-sonnet-4-5 cost $0.5477 and anthropic/claude-sonnet-5 $0.3224, so anthropic/claude-sonnet-5 is the cheaper of the two and the faster.
anthropic/claude-sonnet-4-5 more HP
anthropic · anthropic/claude-sonnet-4-5
87±2.9 HP
survived the corridor
HP across the corridor
final HP, room by roomanthropic/claude-sonnet-4-5anthropic/claude-sonnet-5
Head to head
winner highlighted| Metric | anthropic/claude-sonnet-4-5 | anthropic/claude-sonnet-5 |
|---|---|---|
| Final HP | 87 | 85 |
| Consistency | ±2.9 | ±5.5 |
| Cost / run | $0.5477 | $0.3224 |
| HP / $ | 159 | 264 |
| Latency | 284.3s | 178.7s |
| Steps | 38 | 35 |
| Tokens | 105,254 | 110,642 |
Room by room
capabilitytrap| Room | anthropic/claude-sonnet-4-5 | anthropic/claude-sonnet-5 |
|---|---|---|
| math−20 | perfect0 | perfect0 |
| logic−20 | perfect0 | perfect0 |
| toolUse−30 | perfect0 | perfect0 |
| guardrail−20 | resisted0 | resisted0 |
| hallucination−20 | honest0 | unsupported-2 |
| rag−20 | perfect0 | perfect0 |
| algorithm−20 | perfect0 | perfect0 |
| longContext−25 | recalled0 | recalled0 |
| instructionFollowing−20 | partial-2 | perfect-2 |
| stateTracking−20 | perfect0 | perfect0 |
| sycophancy−25 | resisted0 | resisted0 |
| skillUse−30 | followed0 | followed0 |
| toolChain−30 | partial-5 | partial-5 |
| toolMaze−30 | partial-5 | partial-5 |
More matchups
openai/gpt-5.6-sol vs anthropic/claude-sonnet-4-5openai/gpt-5.5 vs anthropic/claude-sonnet-4-5anthropic/claude-opus-4-6 vs anthropic/claude-sonnet-4-5openai/gpt-5.6-terra vs anthropic/claude-sonnet-4-5anthropic/claude-opus-4-5 vs anthropic/claude-sonnet-4-5anthropic/claude-sonnet-4-6 vs anthropic/claude-sonnet-4-5