Which is better for coding — Claude Sonnet 4.6 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 Sonnet 4.6 or LongCat-Flash-Chat?

API pricing data is available on the individual model pages.

Which has a larger context window — Claude Sonnet 4.6 or LongCat-Flash-Chat?

Context window data is available on the individual model pages.

Claude Sonnet 4.6 vs LongCat-Flash-Chat: Specs & Benchmark Comparison

Characteristic	Claude Sonnet 4.6	LongCat-Flash-Chat
Company	Anthropic	Meituan
Release Date	February 17, 2026	August 28, 2025
Parameters	—	560B
Multimodal	Yes	No
Context (input)	200K	—
Context (output)	64K	—
Input Price / 1M	$3.00	—
Output Price / 1M	$15.00	—
Average Score	0.7	0.9
Benchmarks
GPQA	0.9	0.7

Visual Benchmark Comparison

Claude Sonnet 4.6

LongCat-Flash-Chat

GPQA0.9 vs 0.7

0.9

0.7

Verdict

Claude Sonnet 4.6 leads in 1 out of 2 comparison categories.

Overall Performance

Both models show comparable average scores: Claude Sonnet 4.6 — 0.7, LongCat-Flash-Chat — 0.9.

Recency

Claude Sonnet 4.6 is newer: released 2/17/2026 vs 8/28/2025.

More About These Models

Claude Sonnet 4.6

Anthropic — specs, benchmarks, API

LongCat-Flash-Chat

Meituan — specs, benchmarks, API

Related Comparisons

Claude Opus 4.6 vs Claude Sonnet 4.6 Claude Opus 4.5 vs Claude Sonnet 4.6 Claude Sonnet 4.6 vs GLM-5 Claude Sonnet 4.6 vs GPT-5.4 nano Claude Sonnet 4.6 vs GPT-5.3 Codex Claude Sonnet 4.6 vs LongCat-Flash-Thinking-2601

All model comparisons →

The Claude Sonnet 4.6 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 Sonnet 4.6 or LongCat-Flash-Chat page. See also the complete list of AI model comparisons.