LLM Comparison
Kimi K3 vs Palmyra X5
Side-by-side specs, pricing & capabilities · Updated October 2026
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2/6 models| Organization | ||
| OpenTools Score | 80 8.9 | |
| Family | Kimi | Palmyra |
| Status | Current | Current |
| Release Date | — | Jan 2026 |
| Context Window | 1.0M tokens | 1.0M tokens |
| Input Price | $3.00/M tokens | $0.60/M tokens |
| Output Price | $15.00/M tokens | $6.00/M tokens |
| Pricing Notes | Official Kimi pricing lists kimi-k3 at $3.00 per 1M cache-miss input tokens, $0.30 per 1M cache-hit input tokens, and $15.00 per 1M output tokens. Official troubleshooting docs say max_completion_tokens defaults to 131,072 and maximum output length is 1024*1024 minus prompt tokens. | Writer direct API Palmyra X5: $0.60 input and $6.00 output per million tokens. Writer Agent bills X5 at $5.00 input and $12.00 output per million; Amazon Bedrock pricing is separate. |
| Capabilities | textvisionreasoningcodingtool-usestructured-outputjson-modelong-contextagentic | textcode |
| Max Output | 131K tokens | 8K tokens |
| API Identifier | kimi-k3 | writer/palmyra-x5 |
| Benchmarks | ||
| Artificial Analysis Intelligence Index | 57artificial-analysis | — |
| AA-Briefcase | 1543artificial-analysis | — |
| AA-Briefcase Rubric Pass Rate | 51artificial-analysis | — |
| Artificial Analysis Intelligence Index v4.1.1 | 60artificial-analysis | — |
| Artificial Analysis Intelligence Index v4.3 | 44https://artificialanalysis.ai/models/kimi-k3 | — |
| GPQA Diamond | 93.5354artificial-analysis | — |
| SciCode | 59.4907artificial-analysis | — |
| Terminal-Bench 2.1 | 85.0187artificial-analysis | — |
| View Kimi K3 | View Palmyra X5 | |
Cost Calculator
Enter your expected monthly token usage to compare costs.
| Model | Input | Output | Total / mo | vs Best |
|---|---|---|---|---|
| Palmyra X5Cheapest | $0.60 | $3.00 | $3.60 | — |
| Kimi K3 | $3.00 | $7.50 | $10.50 | +192% |
Moonshot AI
Kimi K3
Kimi K3 is Moonshot AI open-weight 2.8T-parameter flagship model for long-horizon coding, end-to-end knowledge work, reasoning, and native multimodal understanding. Official Kimi documentation lists the API model ID kimi-k3, a 1M-token context window, automatic context caching, tool calls, JSON mode, structured outputs, and always-on reasoning effort controls.
Writer
Palmyra X5
Palmyra X5 is Writer's general-purpose AI model with a 1-million-token context window and an 8,192-token output limit. Writer lists direct API pricing of $0.60 input and $6.00 output per million tokens; X5 is scheduled for deprecation on December 14, 2026.
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