Pairwise benchmark snapshot · Aug 16, 2026

Claude Haiku 4.5 vs Qwen3.8 27B benchmark

Name: Claude Haiku 4.5 vs Qwen3.8 27B AI benchmark comparison
Creator: CompareLLM
License: https://creativecommons.org/licenses/by/4.0/

This page compares Claude Haiku 4.5 (Anthropic) and Qwen3.8 27B (Alibaba) using the latest snapshots we have as of Aug 16, 2026. On preference Elo, Claude Haiku 4.5 is ahead by 40 points (1,438 vs 1,398; seed-bootstrap (Aug 16, 2026)). On SWE-bench coding, Qwen3.8 27B resolves 58.8% versus 58.2% (seed-bootstrap (Aug 16, 2026)). Claude Haiku 4.5 streams faster (175 tok/s) while Qwen3.8 27B is the cheaper output token ($3.2/1M). Qwen3.8 27B has the larger context window (262k tokens). Every cell below is a dated snapshot from a named public source — we do not invent missing scores, and we do not run SWE-bench ourselves.

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Anthropic

Claude Haiku 4.5

Anthropic cheap/fast Claude SKU. Official Claude Platform list price $1/$5 per 1M tokens (Anthropic Haiku page).

Elo 1,438$5/1M out

Alibaba

Qwen3.8 27B

Alibaba open-weight 27B drop dated Aug 14 2026. Dense enough to self-host; not a frontier MoE.

Elo 1,398$3.1999999999999997/1M out

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Model A

Model B

Quick vs:vs Claude Opus 4.5 vs Claude Opus 4.6 vs Claude Sonnet 4.5 vs Claude 3.7 Sonnet

Interactive Comparison Diagram

Matchup Breakdown

Tug-of-War Matchup Matrix

Category wins across intelligence, speed, and pricing efficiency.

Claude Haiku 4.5 (6)vsQwen3.8 27B (4)

Claude Haiku 4.5: 6W (60%)Overall: Claude Haiku 4.5Qwen3.8 27B: 4W (40%)

← Claude Haiku 4.5Qwen3.8 27B →

Claude Haiku 4.5 (4/5)

Intelligence & Reasoning

Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy

Preference Elo

1,438vs1,398

Coding Elo

1,446vs1,422

SWE-bench

58.2%vs58.8%

LiveBench

62.4%vs60.6%

GPQA Diamond

74%vs73.4%

Claude Haiku 4.5: 4WQwen3.8 27B: 1W

Claude Haiku 4.5 (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed

175 tok/svs152 tok/s

Time to first token

95 msvs140 ms

Claude Haiku 4.5: 2WQwen3.8 27B: 0W

Qwen3.8 27B (3/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price

$5/1Mvs$3.2/1M

Input price

$1/1Mvs$0.45/1M

Context window

200kvs262k

Claude Haiku 4.5: 0WQwen3.8 27B: 3W

Capability Matchup Radar

Multi-Dimensional Capability Radar

Each spoke is a skill. Farther from the center is better (0–100th percentile). Tap any dot to inspect details.

Tap any node to inspect

Percentile 0–100

Dimensional AdvantageClaude Haiku 4.5 4/6

Preference Elo

Claude Haiku 4.5

40 pts advantage

Throughput Speed

Claude Haiku 4.5

23 tok/s faster

Price Efficiency

Qwen3.8 27B

$1.80/1M cheaper

Full Benchmark Score Matrix

—

Elo

High is better

+3%1,438

EloHigh is better

1,398

Code Elo

High is better

+2%1,446

Code EloHigh is better

1,422

LiveBench

High is better

+3%62.4%

LiveBenchHigh is better

60.6%

SWE-bench

High is better

58.2%

SWE-benchHigh is better

58.8%+1%

GPQA

High is better

+1%74%

GPQAHigh is better

73.4%

TTFT

Low is better

+47%95 ms

TTFTLow is better

140 ms

Speed

High is better

+15%175 tok/s

SpeedHigh is better

152 tok/s

In $

Low is better

$1/1M

In $Low is better

$0.45/1M+122%

Out $

Low is better

$5/1M

Out $Low is better

$3.2/1M+56%

Context

High is better

200k

ContextHigh is better

262k+31%

Interactive Simulator

Workload Cost & Savings Calculator

Simulate monthly production API costs based on published $/1M tokens.

Save up to 42% with Qwen3.8 27B

Monthly Volume50M tokens/mo

Quick Presets:

Token Ratio (In vs Out)70% In / 30% Out

RAG / Search (10% out)Coding / Chat (50% out)

Claude Haiku 4.5$110.00 / mo

In: $35.00Out: $75.00

Qwen3.8 27B$63.75 / mo

In: $15.75Out: $48.00

Estimated Cost Delta

Qwen3.8 27B is estimated to save $46.25/month ($555/year).

Based on 50M tokens (30% gen)

Key Selection Recommendations

1
Qwen3.8 27B:Pick Qwen3.8 27B when repo-level coding accuracy is the constraint.
2
Claude Haiku 4.5:Pick Claude Haiku 4.5 when time-to-first-token matters more than peak Elo.
3
Claude Haiku 4.5:Pick Claude Haiku 4.5 as the default general assistant.

Recommended Workload Routing

Repo / coding agentsQwen3.8 27B

Higher SWE-bench (58.8%).

High-volume chatQwen3.8 27B

Lower output list price ($3.2/1M).

Voice / low-latency UIClaude Haiku 4.5

Lower TTFT (95 ms).

Long-document RAGQwen3.8 27B

Larger window (262k).

Screenshots / visionClaude Haiku 4.5

Claude Haiku 4.5 is the side marked multimodal in the catalog.

Target Workload	Recommended Pick	Evaluation Rationale
Repo / coding agents	Qwen3.8 27B	Higher SWE-bench (58.8%).
High-volume chat	Qwen3.8 27B	Lower output list price ($3.2/1M).
Voice / low-latency UI	Claude Haiku 4.5	Lower TTFT (95 ms).
Long-document RAG	Qwen3.8 27B	Larger window (262k).
Screenshots / vision	Claude Haiku 4.5	Claude Haiku 4.5 is the side marked multimodal in the catalog.

Related Editorial Dispatches & Benchmark Notes

View all news

compareAug 16, 2026

Haiku 4.5 vs Llama 4 Scout: cheap Claude versus cheap open Llama

$1/$5 hosted Claude vs a cheap long-context open sibling. The alternative-to-Sonnet pair that is honest.

launchAug 14, 2026

Qwen3.8 27B (Aug 14): dense enough to self-host, not a frontier MoE

Alibaba open-weight 27B drop. Local/open-weight lists should see it. It will not win frontier-agents.

launchApr 8, 2026

Llama 4 Scout: long-context open sibling of Maverick

Huge window, cheap hosted lists. The Haiku alternative that is actually open-weight.

launchOct 22, 2025

Claude Haiku 4.5 at $1/$5: the cheap Claude people actually ship

Official Anthropic list $1/$5. This is the SKU behind “cheapest Claude alternative” that is still Claude.

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LIVE

Anthropic

Claude Haiku 4.5

Elo 1,438

LiveBench62.4%

SWE-bench58.2%

Speed175 tok/s

Output cost$5/1M

Alibaba

Qwen3.8 27B

Elo 1,398

LiveBench60.6%

SWE-bench58.8%

Speed152 tok/s

Output cost$3.2/1M

Frequently Asked Questions

Which is better overall, Claude Haiku 4.5 or Qwen3.8 27B?: Claude Haiku 4.5 has the higher preference Elo in our latest snapshot (1,438). “Better” still depends on coding, price, and latency — see the table.
Which is better at coding, Claude Haiku 4.5 or Qwen3.8 27B?: Qwen3.8 27B leads SWE-bench at 58.8% vs 58.2%. SWE-bench is one harness, not your repo.
Which is cheaper to run in production?: Qwen3.8 27B output tokens are $3.2/1M versus $5/1M. Input prices and retry rates still move the real bill.
Which is faster, Claude Haiku 4.5 or Qwen3.8 27B?: Claude Haiku 4.5 has the lower time-to-first-token (95 ms vs 140 ms). Tokens/sec is a separate column if you care about long completions.
Which has the larger context window?: Qwen3.8 27B accepts 262k tokens versus 200k.
Can I self-host either model?: Qwen3.8 27B is marked open-weights in our catalog. The other side is a closed API. Check the provider license before you ship weights.
Are these scores from CompareLLM’s own evals?: No. V1 aggregates public leaderboards (and optional first-party latency pings). Each cell names its source and date. Read /methodology.
What does preference Elo mean on this page?: Preference Elo is a crowd vote from LMArena / Arena. People see two hidden answers and pick the one they like more. The model that wins more often gets a higher Elo. That means people preferred it — not that it passed a school test. It is not SWE-bench, not accuracy, and not a number we invent. Claude Haiku 4.5 and Qwen3.8 27B Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Similar Head-to-Head Comparisons

All Claude Haiku 4.5 matchups →|All Qwen3.8 27B matchups →

Claude Haiku 4.5 vs Claude 3.5 Haiku (previous haiku)Qwen3.8 27B vs Qwen 3 Max (previous qwen)Qwen QwQ 32B vs Claude Haiku 4.5 Qwen 3 Max vs Claude Haiku 4.5 Claude Sonnet 4.5 vs Claude Haiku 4.5 Claude Sonnet 5 vs Claude Haiku 4.5

Claude Haiku 4.5 vs Qwen3.8 27B benchmark

Interactive Comparison Diagram

Matchup Breakdown

Tug-of-War Matchup Matrix

Category wins across intelligence, speed, and pricing efficiency.

Claude Haiku 4.5 (6)vsQwen3.8 27B (4)

Claude Haiku 4.5: 6W (60%)Overall: Claude Haiku 4.5Qwen3.8 27B: 4W (40%)

← Claude Haiku 4.5Qwen3.8 27B →

Claude Haiku 4.5 (4/5)

Intelligence & Reasoning

Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy

Preference Elo

1,438vs1,398

Coding Elo

1,446vs1,422

SWE-bench

58.2%vs58.8%

LiveBench

62.4%vs60.6%

GPQA Diamond

74%vs73.4%

Claude Haiku 4.5: 4WQwen3.8 27B: 1W

Claude Haiku 4.5 (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed

175 tok/svs152 tok/s

Time to first token

95 msvs140 ms

Claude Haiku 4.5: 2WQwen3.8 27B: 0W

Qwen3.8 27B (3/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price

$5/1Mvs$3.2/1M

Input price

$1/1Mvs$0.45/1M

Context window

200kvs262k

Claude Haiku 4.5: 0WQwen3.8 27B: 3W

Recommended Workload Routing

Repo / coding agentsQwen3.8 27B

Higher SWE-bench (58.8%).

High-volume chatQwen3.8 27B

Lower output list price ($3.2/1M).

Voice / low-latency UIClaude Haiku 4.5

Lower TTFT (95 ms).

Long-document RAGQwen3.8 27B

Larger window (262k).

Screenshots / visionClaude Haiku 4.5

Claude Haiku 4.5 is the side marked multimodal in the catalog.

Target Workload	Recommended Pick	Evaluation Rationale
Repo / coding agents	Qwen3.8 27B	Higher SWE-bench (58.8%).
High-volume chat	Qwen3.8 27B	Lower output list price ($3.2/1M).
Voice / low-latency UI	Claude Haiku 4.5	Lower TTFT (95 ms).
Long-document RAG	Qwen3.8 27B	Larger window (262k).
Screenshots / vision	Claude Haiku 4.5	Claude Haiku 4.5 is the side marked multimodal in the catalog.

Frequently Asked Questions

Which is better overall, Claude Haiku 4.5 or Qwen3.8 27B?

Claude Haiku 4.5 has the higher preference Elo in our latest snapshot (1,438). “Better” still depends on coding, price, and latency — see the table.

Which is better at coding, Claude Haiku 4.5 or Qwen3.8 27B?

Qwen3.8 27B leads SWE-bench at 58.8% vs 58.2%. SWE-bench is one harness, not your repo.

Which is cheaper to run in production?

Qwen3.8 27B output tokens are $3.2/1M versus $5/1M. Input prices and retry rates still move the real bill.

Which is faster, Claude Haiku 4.5 or Qwen3.8 27B?

Claude Haiku 4.5 has the lower time-to-first-token (95 ms vs 140 ms). Tokens/sec is a separate column if you care about long completions.

Which has the larger context window?

Qwen3.8 27B accepts 262k tokens versus 200k.

Can I self-host either model?

Qwen3.8 27B is marked open-weights in our catalog. The other side is a closed API. Check the provider license before you ship weights.

Are these scores from CompareLLM’s own evals?

No. V1 aggregates public leaderboards (and optional first-party latency pings). Each cell names its source and date. Read /methodology.

What does preference Elo mean on this page?

Preference Elo is a crowd vote from LMArena / Arena. People see two hidden answers and pick the one they like more. The model that wins more often gets a higher Elo. That means people preferred it — not that it passed a school test. It is not SWE-bench, not accuracy, and not a number we invent. Claude Haiku 4.5 and Qwen3.8 27B Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Swap or Add Any Model to this Matchup

Interactive Comparison Diagram

Tug-of-War Matchup Matrix

Intelligence & Reasoning

Speed & Latency

Pricing & Capacity

Multi-Dimensional Capability Radar

Claude Haiku 4.5

Claude Haiku 4.5

Qwen3.8 27B

Full Benchmark Score Matrix

Workload Cost & Savings Calculator

Key Selection Recommendations

Recommended Workload Routing

Related Editorial Dispatches & Benchmark Notes

Haiku 4.5 vs Llama 4 Scout: cheap Claude versus cheap open Llama

Qwen3.8 27B (Aug 14): dense enough to self-host, not a frontier MoE

Llama 4 Scout: long-context open sibling of Maverick

Claude Haiku 4.5 at $1/$5: the cheap Claude people actually ship

Cast Your Matchup Vote

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CompareLLM Matrix

Claude Haiku 4.5

Qwen3.8 27B

Frequently Asked Questions

Related news

Similar Head-to-Head Comparisons

Swap or Add Any Model to this Matchup

Interactive Comparison Diagram

Tug-of-War Matchup Matrix

Intelligence & Reasoning

Speed & Latency

Pricing & Capacity

Multi-Dimensional Capability Radar

Claude Haiku 4.5

Claude Haiku 4.5

Qwen3.8 27B

Full Benchmark Score Matrix

Workload Cost & Savings Calculator

Key Selection Recommendations

Recommended Workload Routing

Related Editorial Dispatches & Benchmark Notes

Haiku 4.5 vs Llama 4 Scout: cheap Claude versus cheap open Llama

Qwen3.8 27B (Aug 14): dense enough to self-host, not a frontier MoE

Llama 4 Scout: long-context open sibling of Maverick

Claude Haiku 4.5 at $1/$5: the cheap Claude people actually ship

Cast Your Matchup Vote

Community Discussions (0)

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CompareLLM Matrix

Claude Haiku 4.5

Qwen3.8 27B

Frequently Asked Questions

Related news

Similar Head-to-Head Comparisons