Anthropic: Claude Opus 5 vs Mistral: Mistral Medium 3.5
On input price, Mistral: Mistral Medium 3.5 is ~3.3× cheaper. Verified 2026-10-21.
Verdict
On blended price (3:1 input:output), Mistral: Mistral Medium 3.5 is ~3.3× cheaper ($1.50/$7.50 vs $5.00/$25.00 per 1M tokens). Anthropic: Claude Opus 5 scores higher on intelligence (63 vs 30, Artificial Analysis) — pay more only if that gap matters for your workload.
Pricing
Per-million-token list prices, verified 2026-10-21. Green marks the better value.
| Metric | Anthropic: Claude Opus 5 | Mistral: Mistral Medium 3.5 |
|---|---|---|
| Input / 1M | $5.00 | $1.50 |
| Output / 1M | $25.00 | $7.50 |
| Cache read / 1M | $0.500 | — |
| Blended (3:1) | $10.00/1M | $3.00/1M |
| Estimated monthly cost | Anthropic: Claude Opus 5 | Mistral: Mistral Medium 3.5 |
|---|---|---|
| Chatbot10,000 reqs · 800/400 tok | $140.00 | $42.00 |
| Coding agent5,000 reqs · 8000/2000 tok | $450.00 | $135.00 |
| RAG pipeline30,000 reqs · 4000/500 tok | $975.00 | $292.50 |
Plug in your own numbers in the calculator, or paste a real bill into the Bill Shredder.
Specifications & capabilities
| Metric | Anthropic: Claude Opus 5 | Mistral: Mistral Medium 3.5 |
|---|---|---|
| Context window | 1M | 262K |
| Max output | 128K | 210K |
| Vision input | ✓ | ✓ |
| Tool calling | ✓ | ✓ |
| Reasoning | ✓ | ✓ |
Quality
Intelligence Index by Artificial Analysis (independent evaluations, 0–100).
Sources: Anthropic: Claude Opus 5 on Artificial Analysis · Mistral: Mistral Medium 3.5 on Artificial Analysis
Performance
Measured by Artificial Analysis on live endpoints.
Speed measurements aren't available for both models yet.
Provider
Infrastructure metrics for the organizations behind these models.
| Metric | Anthropic | Mistral AI |
|---|---|---|
| Listed endpoints | 8 | 10 |
| Reliability | 99.8% | 99.5% |
| Avg latency | 520 ms | 400 ms |
| Pricing tiers | standard, batch | standard, free |
Full details: Anthropic: Claude Opus 5 pricing · Mistral: Mistral Medium 3.5 pricing