A
Anthropic
Claude Opus 4.8
- Model type
- Proprietary
- Evidence state
- Supported evidence
- Published context
- 1,000,000
Claude Opus 4.8 vs
Kimi K3
Read the published evidence, route context, and missing facts before making a local decision. This page does not name a universal winner.
Models in this comparison
Provider identity and evidence state stay balanced across the pair.
M
Moonshot AI
Kimi K3
- Model type
- Unknown
- Evidence state
- Supported evidence
- Published context
- 1,050,000
Key implications
Broad shared-metric coverage. Each finding is tied to a published metric, price, context, or modality fact.
- Across compatible supported BenchLM categories, Claude Opus 4.8 has a higher score in Knowledge; Kimi K3 has higher scores in Agentic, Coding, and Overall (and 1 more category).
- Input API price: Kimi K3 has the lower verified rate ($3 / 1M tokens vs $5 / 1M tokens).
- Output API price: Kimi K3 has the lower verified rate ($15 / 1M tokens vs $25 / 1M tokens).
- Context window: Kimi K3 has the larger published context window (1,050,000 tokens vs 1,000,000 tokens).
Shared metric view
The radar is a per-axis relative view; exact values and units remain available in its adjacent table.
- Claude Opus 4.8: solid line
- Kimi K3: dashed line
| Metric | Claude Opus 4.8 | Kimi K3 | Unit |
|---|---|---|---|
| Agentic | 61.78 | 73.64 | score |
| Coding | 71.98 | 78.58 | score |
| Knowledge | 86.8 | 83.8 | score |
| MultimodalGrounded | 85.4 | 86.2 | score |
| Overall | 76.6 | 80.61 | score |
Source metrics
Friendly metric names and published units stay visible. Missing measurements remain unavailable rather than becoming a score.
| Metric | Unit | Claude Opus 4.8 | Kimi K3 |
|---|---|---|---|
| Agentic | score | 61.78 | 73.64 |
| Coding | score | 71.98 | 78.58 |
| Knowledge | score | 86.8 | 83.8 |
| Math | score | 66.8 | Unavailable |
| MultimodalGrounded | score | 85.4 | 86.2 |
| Reasoning | score | 68.3 | Unavailable |
| Overall | score | 76.6 | 80.61 |
Agentic
- Unit
- score
- Claude Opus 4.8
- 61.78
- Kimi K3
- 73.64
Coding
- Unit
- score
- Claude Opus 4.8
- 71.98
- Kimi K3
- 78.58
Knowledge
- Unit
- score
- Claude Opus 4.8
- 86.8
- Kimi K3
- 83.8
Math
- Unit
- score
- Claude Opus 4.8
- 66.8
- Kimi K3
- Unavailable
MultimodalGrounded
- Unit
- score
- Claude Opus 4.8
- 85.4
- Kimi K3
- 86.2
Reasoning
- Unit
- score
- Claude Opus 4.8
- 68.3
- Kimi K3
- Unavailable
Overall
- Unit
- score
- Claude Opus 4.8
- 76.6
- Kimi K3
- 80.61
Pricing and context
Verification is shown beside each selected route. Missing facts remain Not verified.
| Field | Unit | Claude Opus 4.8 | Kimi K3 |
|---|---|---|---|
| Input API price | USD / 1M tokens | $5 | $3 |
| Cached input API price | USD / 1M tokens | Not verified | $0.3 |
| Output API price | USD / 1M tokens | $25 | $15 |
| Route context | tokens | 1,000,000 | 1,050,000 |
| Input modalities | published list | Not verified | Not verified |
| Output modalities | published list | Not verified | Not verified |
Input API price
- Unit
- USD / 1M tokens
- Claude Opus 4.8
- $5
- Kimi K3
- $3
Cached input API price
- Unit
- USD / 1M tokens
- Claude Opus 4.8
- Not verified
- Kimi K3
- $0.3
Output API price
- Unit
- USD / 1M tokens
- Claude Opus 4.8
- $25
- Kimi K3
- $15
Route context
- Unit
- tokens
- Claude Opus 4.8
- 1,000,000
- Kimi K3
- 1,050,000
Input modalities
- Unit
- published list
- Claude Opus 4.8
- Not verified
- Kimi K3
- Not verified
Output modalities
- Unit
- published list
- Claude Opus 4.8
- Not verified
- Kimi K3
- Not verified
Evidence provenance
Source records, route identity, timestamps, and methodology are consolidated here without declaring either model a winner.
- Publication time
- Aug 30, 2026, 2:15 AM UTC
- Freshness
- Stale — Published weekly benchmark evidence has not refreshed within 8 days.
- Methodology
- benchlm: benchlm_raw_composite
- Model records
- Claude Opus 4.8 — source benchlm · artifact models · model claude-opus-4-8
- Kimi K3 — source benchlm · artifact models · model kimi-3
- Selected price routes
- Claude Opus 4.8 — route benchlm:claude-opus-4-8 · source benchlm · provider anthropic
- Kimi K3 — route benchlm:kimi-3 · source benchlm · provider moonshot-ai
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