LLM prices / Compare
API price comparison · checked Oct 23, 2026
Claude vs GPT API pricing
Short answerThe cheapest listed Anthropic model, Claude Haiku 5.5, costs $0.35 per 1,000 chatbot replies; the cheapest OpenAI model, GPT-5 nano, costs $0.23. The most expensive are Claude Fable 5 at $35.00 and o1-pro at $465. The median Anthropic model costs $15.75 against $7.75 for OpenAI (14 vs 41 listed models, checked Oct 23, 2026).
Closest-priced match for every Anthropic model
For each listed Anthropic model, the OpenAI model whose chatbot-reply cost is nearest. Price only, not quality.
| Anthropic model | 1,000 chat replies | Nearest OpenAI | 1,000 chat replies |
|---|---|---|---|
| Claude Haiku 5.5 | $0.35 | GPT-6 Luna | $0.35 |
| Claude Haiku 4.5 | $3.50 | o4-mini | $3.41 |
| Claude Sonnet 5.5 | $7.00 | GPT-6.1 Sol | $7.00 |
| Claude Sonnet 5 | $7.00 | GPT-6.1 Sol | $7.00 |
| Claude Sonnet 4.6 | $10.50 | GPT-5.4 | $9.75 |
| Claude Sonnet 4.5 | $10.50 | GPT-5.4 | $9.75 |
| Claude Opus 5.5 | $14.00 | GPT-5.6 Sol | $14.00 |
| Claude Opus 5 | $17.50 | GPT-5.5 | $19.50 |
| Claude Opus 4.8 | $17.50 | GPT-5.5 | $19.50 |
| Claude Opus 4.7 | $17.50 | GPT-5.5 | $19.50 |
| Claude Opus 4.6 | $17.50 | GPT-5.5 | $19.50 |
| Claude Opus 4.5 | $17.50 | GPT-5.5 | $19.50 |
| Claude Fable 5.1 | $35.00 | GPT-6 Astra | $35.00 |
| Claude Fable 5 | $35.00 | GPT-6 Astra | $35.00 |
Every listed Anthropic model
| Model | Input / 1M | Output / 1M | 1,000 chat replies | 1,000 agent steps |
|---|---|---|---|---|
| Claude Haiku 5.5 | $0.1 | $0.5 | $0.35 | $5.00 |
| Claude Haiku 4.5 | $1 | $5 | $3.50 | $50.00 |
| Claude Sonnet 5.5 | $2 | $10 | $7.00 | $100 |
| Claude Sonnet 5 | $2 | $10 | $7.00 | $100 |
| Claude Sonnet 4.6 | $3 | $15 | $10.50 | $150 |
| Claude Sonnet 4.5 | $3 | $15 | $10.50 | $150 |
| Claude Opus 5.5 | $4 | $20 | $14.00 | $200 |
| Claude Opus 5 | $5 | $25 | $17.50 | $250 |
| Claude Opus 4.8 | $5 | $25 | $17.50 | $250 |
| Claude Opus 4.7 | $5 | $25 | $17.50 | $250 |
| Claude Opus 4.6 | $5 | $25 | $17.50 | $250 |
| Claude Opus 4.5 | $5 | $25 | $17.50 | $250 |
| Claude Fable 5.1 | $10 | $50 | $35.00 | $500 |
| Claude Fable 5 | $10 | $50 | $35.00 | $500 |
Every listed OpenAI model
| Model | Input / 1M | Output / 1M | 1,000 chat replies | 1,000 agent steps |
|---|---|---|---|---|
| GPT-5 nano | $0.05 | $0.4 | $0.23 | $2.80 |
| GPT-4.1 nano | $0.1 | $0.4 | $0.31 | $4.80 |
| GPT-6 Luna | $0.1 | $0.5 | $0.35 | $5.00 |
| GPT-4o mini | $0.15 | $0.6 | $0.47 | $7.20 |
| GPT-5.6 Luna | $0.2 | $1.2 | $0.78 | $10.40 |
| GPT-5.4 nano | $0.2 | $1.25 | $0.80 | $10.50 |
| GPT-5 mini | $0.25 | $2 | $1.18 | $14.00 |
| GPT-4.1 mini | $0.4 | $1.6 | $1.24 | $19.20 |
| GPT-3.5 Turbo | $0.5 | $1.5 | $1.35 | $23.00 |
| GPT-3.5 Turbo (0125) | $0.5 | $1.5 | $1.35 | $23.00 |
| GPT-5.4 mini | $0.75 | $4.5 | $2.93 | $39.00 |
| o4-mini | $1.1 | $4.4 | $3.41 | $52.80 |
| o3-mini | $1.1 | $4.4 | $3.41 | $52.80 |
| GPT-5.1 | $1.25 | $10 | $5.88 | $70.00 |
| GPT-5 | $1.25 | $10 | $5.88 | $70.00 |
| GPT-5 Search API | $1.25 | $10 | $5.88 | $70.00 |
| GPT-4.1 | $2 | $8 | $6.20 | $96.00 |
| o3 | $2 | $8 | $6.20 | $96.00 |
| GPT-6.1 Sol | $2 | $10 | $7.00 | $100 |
| GPT-6 Sol | $2 | $10 | $7.00 | $100 |
| GPT-4o | $2.5 | $10 | $7.75 | $120 |
| GPT-5.6 Terra | $2 | $12 | $7.80 | $104 |
| GPT-5.2 | $1.75 | $14 | $8.22 | $98.00 |
| GPT-5.3 Codex | $1.75 | $14 | $8.22 | $98.00 |
| GPT-5.4 | $2.5 | $15 | $9.75 | $130 |
| GPT-4o (2024-05-13) | $5 | $15 | $13.50 | $230 |
| GPT-5.6 Sol | $4 | $20 | $14.00 | $200 |
| GPT-5.5 | $5 | $30 | $19.50 | $260 |
| chat-latest | $5 | $30 | $19.50 | $260 |
| GPT-4 Turbo (2024-04-09) | $10 | $30 | $27.00 | $460 |
| GPT-6 Astra | $10 | $50 | $35.00 | $500 |
| o1 | $15 | $60 | $46.50 | $720 |
| GPT-5.6 Cyber | $12.5 | $75 | $48.75 | $650 |
| GPT-5.5 Cyber | $12.5 | $75 | $48.75 | $650 |
| o3-pro | $20 | $80 | $62.00 | $960 |
| GPT-4 (0613) | $30 | $60 | $69.00 | $1,320 |
| GPT-5 Pro | $15 | $120 | $70.50 | $840 |
| GPT-5.2 Pro | $21 | $168 | $98.70 | $1,176 |
| GPT-5.5 Pro | $30 | $180 | $117 | $1,560 |
| GPT-5.4 Pro | $30 | $180 | $117 | $1,560 |
| o1-pro | $150 | $600 | $465 | $7,200 |
Chatbot reply = 1,500 tokens in, 400 out. Agent step = 40,000 in, 2,000 out. Standard prices, no cache or batch discount.
Model-vs-model pages
Sources
- Anthropic API pricing: https://platform.claude.com/docs/en/about-claude/pricing, checked Oct 23, 2026.
- OpenAI API pricing: https://developers.openai.com/api/docs/pricing, checked Oct 23, 2026.