June 2026 has been the most active month for AI API pricing in years. Between the Claude 4 shutdown on June 15 and a wave of new model releases, the pricing landscape has shifted dramatically. If you haven't re-evaluated your AI stack in the last 2 weeks, you're almost certainly overpaying.
Here's everything that changed, what it costs, and what you should switch to.
The 8 New Models (June 2026)
OpenAI GPT-5.5 NEW PREMIUM
OpenAI's latest flagship. 4x the input cost of GPT-5 ($1.25), 3x the output cost ($10). Only justified for the most demanding reasoning tasks. For most workloads, GPT-5 remains the better value.
OpenAI GPT-5.5 Pro NEW PREMIUM
The most expensive model on the market. 24x GPT-5's input cost. Reserved for research-grade reasoning and complex multi-step analysis. Not recommended for production workloads unless cost is no object.
Anthropic Claude Sonnet 4.6 NEW SAME PRICE
Same price as Claude Sonnet 4 ($3/$15) but with a 5x larger context window (1M vs 200K). Better value per token. If you're still on Sonnet 4, this is a free upgrade — same API, same price, more context.
Google Gemini 3.1 Pro NEW MID TIER
Google's mid-tier workhorse. 1M context window at $2/M input — cheaper than GPT-4o ($2.50) with more context. Strong choice for document analysis and long-context tasks.
Google Gemini 3 Flash NEW BUDGET
The sweet spot for high-volume workloads. 1M context at $0.50/M input — 5x cheaper than GPT-4o with the same context window. Ideal for chatbots, content generation, and RAG pipelines.
Google Gemini 3.1 Flash-Lite NEW BUDGET
Ultra-budget option from Google. 1M context at $0.25/M input. Perfect for classification, extraction, and simple Q&A where you need context but not premium reasoning.
Mistral Large 3 NEW BUDGET
Mistral's flagship at a budget price. $0.50/M input is 50x cheaper than GPT-5.5 and 6x cheaper than GPT-4o. Strong for multilingual tasks and European language support.
Mistral Small 4 NEW CHEAPEST
The cheapest new model. $0.10/M input — on par with Llama 3.1 8B ($0.10) but from a commercial provider with SLA support. Ideal for high-volume, low-complexity tasks.
Pricing Comparison: Old vs New
How the new models stack up against what you were paying before:
| Model | Input/1M | Output/1M | Context | vs. Previous |
|---|---|---|---|---|
| GPT-5.5 (NEW) | $5.00 | $30.00 | 1.05M | 4x GPT-5 input |
| GPT-5 | $1.25 | $10.00 | 272K | — |
| Sonnet 4.6 (NEW) | $3.00 | $15.00 | 1M | Same price, 5x context |
| Sonnet 4 | $3.00 | $15.00 | 200K | Deprecated Jun 15 |
| Gemini 3.1 Pro (NEW) | $2.00 | $12.00 | 1M | Cheaper than Gemini 2.5 Pro |
| Gemini 2.5 Pro | $1.25 | $10.00 | 1M | — |
| Gemini 3 Flash (NEW) | $0.50 | $3.00 | 1M | 5x cheaper than GPT-4o |
| Gemini 3.1 Flash-Lite (NEW) | $0.25 | $1.50 | 1M | Cheapest 1M context model |
| Mistral Large 3 (NEW) | $0.50 | $1.50 | 262K | 50x cheaper than GPT-5.5 |
| Mistral Small 4 (NEW) | $0.10 | $0.30 | 128K | Cheapest commercial model |
| GPT-4o | $2.50 | $10.00 | 128K | — |
| DeepSeek V4 Pro | $0.44 | $0.87 | 1M | Still cheapest for code |
What Should You Switch To?
If you're on GPT-4o ($2.50/$10)
Best value: Gemini 3 Flash ($0.50/$3) — 5x cheaper with 8x more context. For high-volume workloads, this is the clear winner. If you need OpenAI compatibility, GPT-5 mini ($0.25/$2) is 10x cheaper.
If you're on GPT-5 ($1.25/$10)
Stay on GPT-5 unless you specifically need GPT-5.5's capabilities. GPT-5.5 is 4x more expensive — only worth it for the most complex reasoning tasks. For most workloads, GPT-5 or GPT-5 mini ($0.25/$2) are better value.
If you're on Claude Sonnet 4 ($3/$15)
Upgrade to Sonnet 4.6 — same price, 5x more context (1M vs 200K). This is a free upgrade with no code changes needed. The API is identical.
If you're on Gemini 2.5 Pro ($1.25/$10)
Consider Gemini 3 Flash ($0.50/$3) for most tasks — 2.5x cheaper with the same 1M context. Keep Gemini 2.5 Pro only for tasks that need its specific capabilities.
If you want the cheapest option
Mistral Small 4 ($0.10/$0.30) or Gemini 2.5 Flash-Lite ($0.10/$0.40). Both under $0.10/M input. Mistral Small 4 is slightly cheaper on output; Gemini has 10x more context (1M vs 128K).
Calculate Your Exact Costs
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Open Cost Calculator →The 5 Pricing Shifts That Matter Most
- Budget tier now production-viable: Mistral Small 4 ($0.10) and Gemini Flash-Lite ($0.25) offer 2024 flagship quality at 1/20th the price. There's no reason to pay $2.50+ for simple tasks.
- Context windows exploded: 4 of the 8 new models offer 1M+ context. Budget models now match premium models on context size. The "pay more for more context" era is over.
- GPT-5.5 created a new ceiling: $5/$30 is the most expensive mainstream model. It signals OpenAI is targeting enterprise/research, not cost-conscious developers. The value play is GPT-5 or GPT-5 mini.
- Sonnet 4 → 4.6 is a free upgrade: Same price, 5x context. If you're still on Sonnet 4 (deprecated June 15), you need to migrate anyway — Sonnet 4.6 is the drop-in replacement.
- Mistral became price-competitive: Mistral Large 3 at $0.50/M input is now cheaper than GPT-4o ($2.50) by 5x. Mistral Small 4 at $0.10 is the cheapest commercial model available.
Cost Per Request: Real Numbers
Here's what a typical 1,000-token request actually costs across the new models:
| Model | Cost per 1K tokens | Cost per 1K requests | Monthly (100K requests) |
|---|---|---|---|
| GPT-5.5 | $0.0175 | $17.50 | $1,750 |
| GPT-5 | $0.0056 | $5.63 | $563 |
| Sonnet 4.6 | $0.009 | $9.00 | $900 |
| Gemini 3 Flash | $0.00175 | $1.75 | $175 |
| Mistral Small 4 | $0.0007 | $0.70 | $70 |
| DeepSeek V4 Pro | $0.0013 | $1.31 | $131 |
Based on 500 input tokens + 500 output tokens per request. Monthly = 100K requests × 30 days.
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Take the Free Cost Health Check →FAQ
Will these prices change again soon?
AI API pricing has been trending down consistently. GPT-4o dropped 67% from launch. Mistral Large dropped 75%. Budget models are approaching $0.05/M input. If you're not optimizing your model selection quarterly, you're leaving money on the table.
Should I wait for prices to drop more?
Don't wait — optimize now. Even if prices drop further, switching to a cheaper model today saves money immediately. Use the APIpulse calculator to model your costs and switch when the math works for your workload.
How do I switch models without breaking my app?
Most providers use OpenAI-compatible APIs — switching often requires just changing the model ID and API key. Our Migration Code Generator generates production-ready code for any model pair in Python, Node.js, or curl.
What's the best model for coding?
DeepSeek V4 Pro ($0.44/$0.87) remains the best value for code generation. GPT-5 ($1.25/$10) and Claude Opus 4.8 ($5/$25) offer the highest quality but at 3-10x the cost. For most code tasks, DeepSeek V4 Pro delivers 90%+ of the quality at 10% of the price.