Claude 3 Opus vs LongCat-Flash-Chat: Specs & Benchmark Comparison
| Characteristic | Claude 3 Opus | LongCat-Flash-Chat |
|---|---|---|
| Company | Anthropic | Meituan |
| Release Date | February 29, 2024 | August 28, 2025 |
| Parameters | — | 560B |
| Multimodal | Yes | No |
| Context (input) | 200K | — |
| Context (output) | 200K | — |
| Input Price / 1M | $15.00 | — |
| Output Price / 1M | $75.00 | — |
| Average Score | 0.8 | 0.9 |
| Benchmarks | ||
| GPQA | 0.5 | 0.7 |
| MMLU-Pro | 0.7 | 0.8 |
| MMLU | 0.9 | 0.9 |
| HumanEval | 0.8 | 0.9 |
Visual Benchmark Comparison
Claude 3 Opus
LongCat-Flash-Chat
GPQA0.5 vs 0.7
0.5
0.7
MMLU-Pro0.7 vs 0.8
0.7
0.8
MMLU0.9 vs 0.9
0.9
0.9
HumanEval0.8 vs 0.9
0.8
0.9
Verdict
LongCat-Flash-Chat leads in 1 out of 2 comparison categories.
Overall Performance
Both models show comparable average scores: Claude 3 Opus — 0.8, LongCat-Flash-Chat — 0.9.
Recency
LongCat-Flash-Chat is newer: released 8/28/2025 vs 2/29/2024.
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Frequently Asked Questions
Which is better for coding — Claude 3 Opus or LongCat-Flash-Chat?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — Claude 3 Opus or LongCat-Flash-Chat?
API pricing data is available on the individual model pages.
Which has a larger context window — Claude 3 Opus or LongCat-Flash-Chat?
Context window data is available on the individual model pages.
The Claude 3 Opus and LongCat-Flash-Chat comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Claude 3 Opus or LongCat-Flash-Chat page. See also the complete list of AI model comparisons.