Anthropic Claude Haiku Latest is $0.75 cheaper per 1M input tokens (42.9% lower; 1.75x difference).
API cost decision in 10 seconds
NewAnthropic Claude Haiku Latest vs GPT-5.2-Codex
Pick Anthropic Claude Haiku Latest for lower cost; pick GPT-5.2-Codex only if the larger context window matters more.
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Data confirmed:
Prices normalized to USD per 1M tokens
Sample workload: 1M input + 500K output
Budget verdict
Pick Anthropic Claude Haiku Latest for lower cost; pick GPT-5.2-Codex only if the larger context window matters more.
On the standard 1M input plus 500K output workload, Anthropic Claude Haiku Latest is estimated at $3.5 vs $8.75 for GPT-5.2-Codex, saving $5.25 (60% lower).
Cost-first pickAnthropic Claude Haiku Latest
Context-first pickGPT-5.2-Codex
Sample savings$5.2560%
10x traffic gap$52.5
GPT-5.2-Codex has more context, but Anthropic Claude Haiku Latest saves $5.25 on the standard workload. At 10x that traffic, the same price gap is about $52.5. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
Anthropic Claude Haiku Latest stays cheaper across input-heavy, balanced, and output-heavy sample workloads.
| Workload shape | Token mix | Better pick | Anthropic Claude Haiku Latest | GPT-5.2-Codex |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | Anthropic Claude Haiku Latest | $7.5 | $15.75 |
| Balanced workload | 1M input + 1M output | Anthropic Claude Haiku Latest | $6 | $15.75 |
| Output-heavy chatbot | 1M input + 5M output | Anthropic Claude Haiku Latest | $26 | $71.75 |
Anthropic Claude Haiku Latest is $9 cheaper per 1M output tokens (64.3% lower; 2.8x difference).
GPT-5.2-Codex has 200K more context (2x larger).
Anthropic Claude Haiku Latest is $5.25 cheaper on the standard workload (60% lower).
Estimate your workload cost
Your Workload Cost
This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.
Quick Decision
Anthropic Claude Haiku Latest has the lower input price; Anthropic Claude Haiku Latest has the lower output price; GPT-5.2-Codex offers the larger context window. For the 1M input plus 500K output sample, Anthropic Claude Haiku Latest is cheaper for the standard workload.
For a 1M input token plus 500K output token workload, the estimated API cost is $3.5 for Anthropic Claude Haiku Latest and $8.75 for GPT-5.2-Codex.
Choose Anthropic Claude Haiku Latest when you care most about lower input-token price, and lower output-token price.
Choose GPT-5.2-Codex when you care most about larger context window.
- On the standard 1M input plus 500K output workload, Anthropic Claude Haiku Latest is estimated at $3.5 vs $8.75 for GPT-5.2-Codex, saving $5.25 (60% lower).
- Anthropic Claude Haiku Latest is $5.25 cheaper on the standard workload (60% lower).
- Anthropic Claude Haiku Latest is $0.75 cheaper per 1M input tokens (42.9% lower; 1.75x difference).
- Anthropic Claude Haiku Latest is $9 cheaper per 1M output tokens (64.3% lower; 2.8x difference).
- GPT-5.2-Codex has 200K more context (2x larger).
| Feature | NewAnthropic Claude Haiku Latest (Anthropic) | GPT-5.2-Codex (OpenAI) |
|---|---|---|
| Input Price prompt tokens per 1M | $1 | $1.75 |
| Completion Price per 1M tokens | $5 | $14 |
| Sample Workload Cost 1M input + 500K output | $3.5 | $8.75 |
| Context Window | 200K | 400K |
| Release Date |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | Anthropic Claude Haiku Latest | On the standard 1M input plus 500K output workload, Anthropic Claude Haiku Latest is estimated at $3.5 vs $8.75 for GPT-5.2-Codex, saving $5.25 (60% lower). |
| High-volume input processing | Anthropic Claude Haiku Latest | Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill. |
| Long responses and chatbots | Anthropic Claude Haiku Latest | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | GPT-5.2-Codex | A larger context window leaves more room for retrieved passages, conversation history, or source files. |
Related Alternatives
- Claude 3 Haiku can replace Anthropic Claude Haiku Latest when lower sample workload cost matters most: $0.88.
- Claude 3.5 Haiku can replace Anthropic Claude Haiku Latest when lower sample workload cost matters most: $2.8.
- gpt-oss-120b (free) can replace GPT-5.2-Codex when lower sample workload cost matters most: $0.
- gpt-oss-20b (free) can replace GPT-5.2-Codex when lower sample workload cost matters most: $0.
- Llama 4 Scout offers 10M context with $0.23 sample workload cost.
- Grok 4.20 Multi-Agent offers 2M context with $5 sample workload cost.
- Grok 4.20 offers 2M context with $2.5 sample workload cost.
- GPT-5.4 offers 1.05M context with $10 sample workload cost.
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GPT-5.2-Codex is an upgraded version of GPT-5.1-Codex optimized for software engineering and coding workflows. It is designed for both interactive development sessions and long, independent execution of complex engineering tasks....