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Back to models

Data points: 63

On this page

Key TakeawaysComparison sheetBenchmark score comparisonAPI audit comparisonProvider examplesWhen to choose each modelFAQRelated compare reports

Key Takeaways

The readout for Claude 3 Haiku and GPT-5.2, before the detailed comparison sheet.

Decision read

GPT-5.2

GPT-5.2 currently has the stronger profile, with verified wins split 0 to 4.

Evidence depth

63 data points

Includes 0 benchmark rows, 0 audit samples, and 8 provider examples.

Selection signal

Start with GPT-5.2

The charts below split 8 high-signal samples across speed, scores, and audit health.

Model compare

Claude 3 Haiku vs GPT-5.2

claude-3-haiku-vs-gpt-5-2

Model A

Claude

Claude 3 Haiku

Model B

OpenAI

GPT-5.2

Overall leaderContenderLeading
Verified metric wins0 wins4 wins
Where it leadsNo dataCheapest input price, Free providers, Provider coverage, Recent tests
Model metadataClaude 3 Haiku exposes 200K tokens; notable signals: Text input, Image input, Text output, Tool calling.GPT-5.2 exposes 128K tokens; notable signals: Text input, Image input, File input, Text output.
DeveloperAnthropicOpenAI
Context window200K tokens128K tokens
Max output4.1K tokens16.4K tokens
ReleasedMar 2024Dec 2025
Modalities

Input

TextImage

Output

Text

Input

FileImageText

Output

Text
Features
Text inputImage inputText outputTool calling
Text inputImage inputFile inputText outputTool callingStructured outputsJSON mode
ParametersNo dataNo data
TokenizerClaudeGPT
Knowledge cutoff2023-08-31No data
OpenRouter IDanthropic/claude-3-haikuopenai/gpt-5.2-chat
ReferencesNo dataNo data

Benchmark score comparison

Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.

Metric
ClaudeClaude 3 Haiku
OpenAIGPT-5.2
No shared benchmark metrics are available yet.

API audit comparison

Latest completed audits from shared providers, with four safety and integrity score groups plus report links.

Provider
ClaudeClaude 3 Haiku
OpenAIGPT-5.2
No completed audits are available from shared providers yet.

Provider examples

Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.

Provider
ClaudeClaude 3 Haiku
OpenAIGPT-5.2
ModelPool5 tests
Claude

Claude 3 Haiku

claude-3-haiku-20240307

speed / latency

N/A / N/A

input / output

$0.021/M / $0.107/M

OpenAI

GPT-5.2

gpt-5.2-chat-latest

speed / latency

64 tok/s / 5256ms

input / output

$0.150/M / $1.20/M

AASS API0 tests
Claude

Claude 3 Haiku

speed / latency

N/A / N/A

input / output

No data

OpenAI

GPT-5.2

speed / latency

N/A / N/A

input / output

No data

AIGCBAR0 tests
Claude

Claude 3 Haiku

speed / latency

N/A / N/A

input / output

No data

OpenAI

GPT-5.2

speed / latency

N/A / N/A

input / output

No data

AIO通用智能服务平台0 tests
Claude

Claude 3 Haiku

speed / latency

N/A / N/A

input / output

No data

OpenAI

GPT-5.2

speed / latency

N/A / N/A

input / output

No data

MonkingAI0 tests
Claude

Claude 3 Haiku

speed / latency

N/A / N/A

input / output

No data

OpenAI

GPT-5.2

speed / latency

N/A / N/A

input / output

No data

Newagiai
Claude

Claude 3 Haiku

claude-3-haiku-20240307

speed / latency

No data

input / output

$0.034/M / $0.171/M

OpenAI

GPT-5.2

gpt-5.2-chat-latest

speed / latency

No data

input / output

$0.240/M / $1.92/M

PoloAPI
Claude

Claude 3 Haiku

claude-3-haiku-20240307

speed / latency

No data

input / output

$0.034/M / $0.171/M

OpenAI

GPT-5.2

gpt-5.2-chat-2026-02-10

speed / latency

No data

input / output

$10.27/M / $82.19/M

SanShui API
Claude

Claude 3 Haiku

claude-3-haiku-20241022

speed / latency

No data

input / output

$0.034/M / $0.171/M

OpenAI

GPT-5.2

gpt-5.2

speed / latency

No data

input / output

$0.240/M / $1.92/M

When to choose each model

This report only uses LMSpeed data for Claude 3 Haiku and GPT-5.2: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.

Guidance
ClaudeClaude 3 Haiku
OpenAIGPT-5.2
When to choose each model

Claude 3 Haiku

Claude 3 Haiku does not clearly lead on the verified metrics here, so check provider-specific pricing before choosing.

GPT-5.2

GPT-5.2 is stronger when you prioritize Cheapest input price, Free providers, Provider coverage, Recent tests.

FAQ

TL;DR: GPT-5.2 leads across 63 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.

Why is this comparison indexable?
It has 4 verifiable comparison points, and both models have pricing or benchmark data.
Are missing metrics invented?
No. Metrics without LMSpeed data are omitted from this report.

Related compare reports

Continue from Claude 3 Haiku vs GPT-5.2 into nearby model comparisons with enough verified LMSpeed data.

ClaudeClaude 3 Haiku vs GPT-5.44 verified data pointsClaudeClaude 3 Haiku vs Claude Opus 4.64 verified data pointsClaudeClaude 3 Haiku vs GPT-54 verified data pointsClaudeClaude 3 Haiku vs Gemini 2.5 Pro4 verified data points

Data as of Jun 13, 2026, 04:24 PM·Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.