OpenAI o3-mini vs Reka Flash
Performance benchmarks + pricing comparison — updated April 2026
OpenAI o3-mini
OpenAIAffordable reasoning model for coding tasks. Best price-performance for algorithm-heavy work.
| Input | $1.10/M |
| Output | $4.40/M |
| Context | 200K tokens |
| Best For | Algorithm design, coding challenges, debugging |
| Benchmark | 80/100 |
Reka Flash
RekaReka's fast multimodal model. Compact and efficient for high-volume tasks with vision capability.
| Input | $0.200/M |
| Output | $0.800/M |
| Context | 128K tokens |
| Best For | High-volume tasks, vision + text, cost optimization |
| Benchmark | 40/100 |
Benchmark Performance Comparison
Third-party benchmark scores — higher is better. Data sourced from SWE-bench, LiveCodeBench, HumanEval, and BigCodeBench.
| Benchmark | OpenAI o3-mini | Reka Flash | Leader |
|---|---|---|---|
| Overall Score | 80 | 40 | o3-mini leads by 40pts |
| SWE-bench Verified | 76 | 32 | o3-mini leads by 44pts |
| LiveCodeBench | 85 | 42 | o3-mini leads by 43pts |
| HumanEval | 94 | 62 | o3-mini leads by 32pts |
| BigCodeBench | 65 | 26 | o3-mini leads by 39pts |
Cost Comparison by Scenario
Estimated cost per project with 30% cache hit rate. Actual costs may vary based on usage patterns.
| Scenario | OpenAI o3-mini | Reka Flash | Savings |
|---|---|---|---|
| Small Script (1K lines) | $0.17 | $0.03 | Reka Flash saves $0.14 (82%) |
| Medium Feature (10K lines) | $1.27 | $0.23 | Reka Flash saves $1.04 (82%) |
| Large Project (50K lines) | $6.33 | $1.15 | Reka Flash saves $5.18 (82%) |
| Code Review (5K lines) | $0.30 | $0.06 | Reka Flash saves $0.25 (82%) |
Value Analysis (Price per Benchmark Score Point)
Lower is better — how much you pay for each point of benchmark performance.
| Model | Overall Score | Price per Score Point | Verdict |
|---|---|---|---|
| OpenAI o3-mini | 80 | $0.014/pt | Better value |
| Reka Flash | 40 | $0.025/pt | Higher cost per point |
OpenAI o3-mini delivers the best value at $0.014 per score point.
Strengths & Weaknesses
OpenAI o3-mini
- + Excellent at competitive programming
- + Strong algorithmic reasoning
- - Optimized for reasoning, not chat
Reka Flash
- + Multimodal
- + Fast
- - Basic coding
- - Niche provider
Verdict
Reka Flash is cheaper at $0.200/M, but OpenAI o3-mini scores higher on benchmarks (80 vs 40).
Choose Reka Flash for cost-sensitive projects, OpenAI o3-mini when performance matters most.
Compare with Other Models
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Claude Opus 4
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Claude 3.5 Sonnet
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Claude 3.5 Haiku
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Claude 3 Opus
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Claude 3 Sonnet
AnthropicFirst generation Sonnet. Balanced performance for general tasks.