Claude 4 Opus vs Mistral Medium 3.5
Deprecated Anthropic premium vs Mistral AI mid-tier — 90% cheaper on both input and output. The cost-effective alternative for Claude 4 migration.
Pricing data verified: Jun 10, 2026
| Specification | Claude 4 Opus | Mistral Medium 3.5 |
|---|---|---|
| Input Price (per 1M tokens) | $15.00 | $1.50 |
| Output Price (per 1M tokens) | $75.00 | $7.50 |
| Context Window | 200K tokens | 128K tokens |
| Tier | Premium | Mid |
| Provider | Anthropic | Mistral AI |
| License | Proprietary | Proprietary |
| Self-Hostable | No | No |
| Status | Deprecated Jun 15 | Active |
| Cost at 1M input + 500K output | $52.50 | $5.25 |
Calculate Your Exact Costs
Enter your usage to see how much you save by migrating from Claude 4 Opus to Mistral Medium 3.5.
Which Model for Which Use Case?
Claude 4 Opus Migration
With Claude 4 Opus deprecating June 15, Mistral Medium 3.5 offers a cost-effective alternative — 90% cheaper on both input and output. Same quality tier for most tasks.
Code Generation & Instruction Following
Mistral Medium 3.5 excels at code generation, instruction following, and multilingual tasks — the same use cases where Claude 4 Opus was strong. 128K context handles most workloads.
Direct Anthropic Successor
If you need Anthropic's ecosystem and style, Claude Opus 4.8 ($5/$25) is the direct successor — 67% cheaper than Claude 4 Opus with 5x more context (1M tokens).
Maximum Cost Savings
For workloads where quality is important but budget matters, Mistral Medium 3.5 at $1.50/$7.50 is 90% cheaper than Claude 4 Opus. For even deeper savings, consider DeepSeek V4 Pro ($0.44/$0.87) — 97% cheaper with 1M context.
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Frequently Asked Questions
Is Mistral Medium 3.5 cheaper than Claude 4 Opus?
Yes, dramatically. Claude 4 Opus costs $15.00/M input and $75.00/M output. Mistral Medium 3.5 costs $1.50/M input and $7.50/M output. Mistral Medium 3.5 is 90% cheaper on both input and output. For a typical workload of 1M input + 500K output tokens/month, Mistral Medium 3.5 costs $5.25 vs Claude 4 Opus's $52.50 — saving you $47.25/month (90%).
How does Mistral Medium 3.5 quality compare to Claude 4 Opus?
Claude 4 Opus was Anthropic's flagship model with excellent reasoning and coding capabilities, but it's being deprecated on June 15, 2026. Mistral Medium 3.5 from Mistral AI is a strong mid-tier competitor with a 128K token context window. Mistral Medium 3.5 excels at code generation, instruction following, and multilingual tasks. For Opus-level quality at a lower price, Mistral Medium 3.5 offers excellent value.
What happens when Claude 4 Opus deprecates on June 15?
After June 15, 2026, Claude 4 Opus API calls will fail with errors. You must migrate to a replacement model. Options: (1) Mistral Medium 3.5 ($1.50/$7.50) — 90% cheaper, 128K context, strong mid-tier. (2) Claude Opus 4.8 ($5/$25) — direct Anthropic successor, 67% cheaper with 5x more context. (3) GPT-5 ($1.25/$10) — 92% cheaper, 272K context. (4) DeepSeek V4 Pro ($0.44/$0.87) — budget open source with 1M context.
Can Mistral Medium 3.5 handle the same tasks as Claude 4 Opus?
Yes, for most tasks. Mistral Medium 3.5 handles code generation, instruction following, document analysis, and multilingual tasks that previously required Claude 4 Opus. Mistral Medium 3.5's 128K context handles most document lengths. For tasks needing 200K+ context or Anthropic's specific style, consider Claude Opus 4.8 ($5/$25) or GPT-5 ($1.25/$10) with 272K context.