Basic Information
- Analysis Type: API Pricing Comparison Analysis
- Comparison Targets: Anthropic Claude / OpenAI GPT / DeepSeek
- Data Time: March 2026
- Price Unit: USD per Million Tokens
Market Overview
In 2026, LLM API prices have decreased by approximately 80% compared to 2025. Vendors have significantly reduced API costs through technological optimization and economies of scale. Price competition has driven down the cost of AI application adoption.
Major Model Pricing Comparison
Anthropic Claude Series
| Model | Input Price (/M Token) | Output Price (/M Token) | Positioning |
|---|
| Claude Opus 4.6 | $5.00 | $25.00 | Strongest reasoning, complex tasks |
| Claude Sonnet 4.5 | $3.00 | $15.00 | Balanced performance and cost |
| Claude Haiku 3.5 | $0.25 | $1.25 | Fast, economical |
Note: Opus 4.6 is 67% cheaper than its predecessor Opus 4.1 ($15/$75).
OpenAI GPT Series
| Model | Input Price (/M Token) | Output Price (/M Token) | Positioning |
|---|
| GPT-5.4 | $2.50 | - | Latest flagship |
| GPT-5.3 Codex | $3.00 | $15.00 | Code-specific |
| GPT-5.2 Pro | $21.00 | $168.00 | Strongest reasoning |
| GPT-5 | $1.25 | $10.00 | Main model |
| O3 Pro | $150.00 | - | Super reasoning |
DeepSeek Series
| Model | Input Price (/M Token) | Output Price (/M Token) | Positioning |
|---|
| DeepSeek V4 | $0.30 | $0.50 | Latest flagship |
| DeepSeek V3.2 | $0.28 | $0.42 | Previous generation (extremely cheap) |
| DeepSeek R1 | - | - | Reasoning model |
Note: DeepSeek cache hits enjoy a 90% discount.
Price Comparison Matrix (Same Tier Models)
Flagship Reasoning Tier (Strongest Capability)
| Model | Input | Output | Output/Input Ratio |
|---|
| Claude Opus 4.6 | $5.00 | $25.00 | 5x |
| GPT-5.2 Pro | $21.00 | $168.00 | 8x |
| O3 Pro | $150.00 | - | - |
Conclusion: Claude Opus 4.6's output price is only 15% of GPT-5.2 Pro's.
Main Balanced Tier
| Model | Input | Output | Cost-Effectiveness Rating |
|---|
| Claude Sonnet 4.5 | $3.00 | $15.00 | High |
| GPT-5 | $1.25 | $10.00 | High |
| DeepSeek V4 | $0.30 | $0.50 | Very High |
Conclusion: DeepSeek V4's output price is only 3.3% of Claude Sonnet's and 5% of GPT-5's.
Lightweight Economical Tier
| Model | Input | Output | Cost-Effectiveness Rating |
|---|
| Claude Haiku 3.5 | $0.25 | $1.25 | High |
| DeepSeek V3.2 | $0.28 | $0.42 | Very High |
Impact on OpenClaw Costs
Daily Usage Cost Estimate (100 Agent tasks, ~5000 Token output per task)
| Model | Daily Cost | Monthly Cost (30 days) |
|---|
| Claude Opus 4.6 | $12.50 | $375 |
| Claude Sonnet 4.5 | $7.50 | $225 |
| Claude Haiku 3.5 | $0.63 | $19 |
| GPT-5 | $5.00 | $150 |
| DeepSeek V4 | $0.25 | $7.5 |
Recommended Strategy
- Cost Priority: DeepSeek V4 as main model, upgrade to Claude Sonnet for complex tasks
- Quality Priority: Claude Sonnet as main model, use Opus for extremely complex tasks
- Optimal Mix: DeepSeek V4 (70% simple tasks) + Claude Sonnet (25% medium tasks) + Opus (5% complex tasks)
Trend Analysis
- API prices continue to decline, expected to drop further in the second half of 2026
- Chinese vendors like DeepSeek exert significant pressure on price competition
- Cache and quantization technologies continue to reduce actual usage costs
- Local open-source models improve, gradually replacing some API calls
External References
Learn more from these authoritative sources: