Solar Pro 4 vs. KAT Coder Pro V2
Comparison between Solar Pro 4 and KAT Coder Pro V2 across intelligence, price, speed, context window and more.
For details relating to our methodology, see our Methodology page.
Highlights
Model Comparison
Solar Pro 4 | KAT Coder Pro V2 | ||
|---|---|---|---|
| Intelligence Index | 42 | 35* | Solar Pro 4 is more intelligent than KAT Coder Pro V2 |
| Price per 1M Tokens | $0.22 | $0.22 | Both Solar Pro 4 and KAT Coder Pro V2 have the same price |
| Output Speed | 62 tokens/s | 104 tokens/s | KAT Coder Pro V2 is faster than Solar Pro 4 |
| Time to First Token | 2.14s | 1.39s | KAT Coder Pro V2 responds faster than Solar Pro 4 |
| Context Window | 512k tokens~768 A4 pages of size 12 Arial font | 256k tokens~384 A4 pages of size 12 Arial font | Solar Pro 4 has a larger context window than KAT Coder Pro V2 |
| Release Date | August 2026 | March 2026 | Solar Pro 4 has a more recent release date than KAT Coder Pro V2 |
| Reasoning | Yes | No | Solar Pro 4 has reasoning while KAT Coder Pro V2 does not |
| Image Input Support | No | No | Neither Solar Pro 4 nor KAT Coder Pro V2 have image input support |
| Open Source (Weights) | No | No | Both Solar Pro 4 and KAT Coder Pro V2 are proprietary |
Intelligence
Artificial Analysis Intelligence Index
Artificial Analysis Intelligence Index by Open Weights / Proprietary
Intelligence Evaluations
Agentic real-world work tasks, (Elo-500)/2000
Agentic tool use
Agentic coding & terminal use
Coding
Reasoning & knowledge
Scientific reasoning
Physics reasoning
Knowledge
1 - hallucination rate
Long context reasoning
Agentic knowledge work, Elo
Agentic SaaS workflows
Legal agentic work, criterion pass rate
Agentic business operations
Quantitative analysis on spreadsheets & documents
Instruction following
Long-horizon agentic tasks
Kubernetes incident root-cause analysis
Visual reasoning
AA-Briefcase
AA-Briefcase Elo
AA-Omniscience
AA-Omniscience Index
Openness Index
Artificial Analysis Openness Index: Score
Intelligence Index Comparisons
Intelligence Index vs. Cost per Intelligence Index Task
Token Use
Output Tokens per Intelligence Index Task
Cost
Cost per Intelligence Index Task
Cost to Run Artificial Analysis Intelligence Index
Pricing: Cache Hit, Input, and Output
Context Window
Context Window
Speed
Measured by Output Speed (tokens per second)
Output Speed
Time per Intelligence Index Task
Latency
Measured by Time (seconds) to First Token
Latency: Time To First Answer Token
End-to-End Response Time
Seconds to output 500 tokens, calculated based on time to first token, 'thinking' time for reasoning models, and output speed
End-to-End Response Time
Model Size (Open Weights Models Only)
Model Size: Total and Active Parameters
Frequently Asked Questions
Solar Pro 4 is more intelligent. Solar Pro 4 scores 42, compared with KAT Coder Pro V2 at 35 (estimated) on the Artificial Analysis Intelligence Index.
KAT Coder Pro V2 is faster. KAT Coder Pro V2 generates 103.7 tokens per second, compared with Solar Pro 4 at 62.3 tokens per second.
Both models cost $0.22 per 1M tokens (7:2:1 cache hit/input/output ratio).
KAT Coder Pro V2 has lower latency. KAT Coder Pro V2 has a time to first token of 1.39s, compared with Solar Pro 4 at 2.14s.
Solar Pro 4 has a larger context window. Solar Pro 4 supports 510k tokens, compared with KAT Coder Pro V2 at 260k tokens.