Claude Haiku 4.5 vs Kimi K2.6

Compare Claude Haiku 4.5 and Kimi K2.6 on the metrics that decide an agent workload.

MetricClaude Haiku 4.5Kimi K2.6
ProviderAnthropicFireworks AI
Input / 1M$1.00$0.95
Output / 1M$5.00$4.00
Cache read / 1M$0.10 (−90%)$0.16 (−83%)
Reuse-adj @55%$1.63$1.39
Context200K262K
Cache capture90%81%
Warm TTFT110ms (−66%)140ms (−63%)
Quality index8085

Teal marks the better value in each row. Reuse-adjusted assumes 55% prefix reuse and a 25% output share.

Pick Claude Haiku 4.5 when

Pick Claude Haiku 4.5 when it answers faster on warm cache hits, it captures more of the available reuse.

Pick Kimi K2.6 when

Pick Kimi K2.6 when it scores higher on the composite quality index, it is cheaper once prefix reuse is priced in, it carries the larger 262K context window.

Verdict

Kimi K2.6 wins on both reuse-adjusted cost and quality here, so it is the default pick. Reach for Claude Haiku 4.5 only when a specific constraint (modality, latency floor, or licensing) forces it.

Claude Haiku 4.5 vs Kimi K2.6, answered.

Is Claude Haiku 4.5 or Kimi K2.6 cheaper?

At 55% prefix reuse, Claude Haiku 4.5 blends to about $1.63 per 1M tokens and Kimi K2.6 to about $1.39. Kimi K2.6 is cheaper on that basis.

Which has the larger context window?

Kimi K2.6 has the larger window: 262K vs 200K tokens.

Which captures more reuse?

Claude Haiku 4.5 shows higher measured cache capture (90% vs 81%) in the Zumik corpus.

Let an alias pick for you.

Route to whichever model wins under current policy automatically. Zumik resolves the alias to the best fit per request, so you never hard-code a loser.