Claude Opus 5 (Fast) vs Mistral Small 3
Detailed technical comparison between Claude Opus 5 (Fast) (Anthropic) and Mistral Small 3 (Mistral). Review live API token pricing, context window capabilities, time-to-first-token latency, and verified benchmark scores side-by-side.
Comparison Snapshot
Claude Opus 5 (Fast)
1,000,000 tokensTie
Equal CapabilityTie
Equal SpeedMistral Small 3
$0.10 / MTokClaude Opus 5 (Fast)
Fast-mode variant of [Opus 5](/anthropic/claude-opus-5) - identical capabilities with higher output speed at 2x pricing relative to regular Opus 5. Learn more in Anthropic's docs: https://platform.claude.com/docs/en/build-with-claude/fast-mode
Mistral Small 3
Mistral Small 3 is a 24B-parameter language model optimized for low-latency performance across common AI tasks. Released under the Apache 2.0 license, it features both pre-trained and instruction-tuned versions designed...
Technical Specifications
🏆 = Superior Spec| Specification | Claude Opus 5 (Fast) | Mistral Small 3 |
|---|---|---|
| Provider | Anthropic | Mistral |
| Context Window | 1,000,000 tokens🏆 | 32,768 tokens |
| Agent Suitability | Not yet benchmarked | 84/100 (est.) |
| Time to First Token (TTFT) | No public TTFT data | 120 ms (est.) |
| Deployment Model | managed api | managed api |
| Production Stability | Beta Access (est.) | Stable GA (est.) |
| API Available | Yes | Yes |
| Released Date | 2026-07-24 | 2025-01-30 |
API Pricing Comparison
Input Price per Million Tokens
Claude Opus 5 (Fast)
$10.00
Mistral Small 3
$0.10
Output Price per Million Tokens
Claude Opus 5 (Fast)
$50.00
Mistral Small 3
$0.30
💡 Cost Ratio: Mistral Small 3 is 100.0x cheaper per input token than Claude Opus 5 (Fast).
Want to test both models live?
Run side-by-side prompt benchmarks in our dynamic multi-model Sandbox. Compare execution speeds, latency metrics, and compute actual costs in real-time.
Benchmark Performance Metrics
Standardized Scores (0–100%)Scores show verified raw accuracy percentages across standardized AI evaluation suites. Higher bars indicate superior performance in that domain.
Claude Opus 5 (Fast) Quirks & Gotchas
No developer gotchas reported.
Mistral Small 3 Quirks & Gotchas
- ▸Fastest TTFT at lowest cost — ideal for high-volume classification
- ▸Not designed for complex reasoning — route multi-step tasks to Mistral Large 3
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