GPT-4 vs Reka Flash
Performance benchmarks + pricing comparison — updated April 2026
GPT-4
OpenAIOriginal GPT-4. Most expensive OpenAI model, largely superseded by newer options.
| Input | $30.00/M |
| Output | $60.00/M |
| Context | 8K tokens |
| Best For | Legacy applications requiring GPT-4 specifically |
| Benchmark | 68/100 |
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 | GPT-4 | Reka Flash | Leader |
|---|---|---|---|
| Overall Score | 68 | 40 | GPT-4 leads by 28pts |
| SWE-bench Verified | 60 | 32 | GPT-4 leads by 28pts |
| LiveCodeBench | 70 | 42 | GPT-4 leads by 28pts |
| HumanEval | 86 | 62 | GPT-4 leads by 24pts |
| BigCodeBench | 54 | 26 | GPT-4 leads by 28pts |
Cost Comparison by Scenario
Estimated cost per project with 30% cache hit rate. Actual costs may vary based on usage patterns.
| Scenario | GPT-4 | Reka Flash | Savings |
|---|---|---|---|
| Small Script (1K lines) | $2.85 | $0.03 | Reka Flash saves $2.82 (99%) |
| Medium Feature (10K lines) | $22.50 | $0.23 | Reka Flash saves $22.27 (99%) |
| Large Project (50K lines) | $112.50 | $1.15 | Reka Flash saves $111.35 (99%) |
| Code Review (5K lines) | $6.75 | $0.06 | Reka Flash saves $6.70 (99%) |
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 |
|---|---|---|---|
| GPT-4 | 68 | $0.441/pt | Higher cost per point |
| Reka Flash | 40 | $0.025/pt | Better value |
Reka Flash delivers the best value at $0.025 per score point.
Strengths & Weaknesses
GPT-4
- + Original breakthrough model
- - Two generations behind
- - Expensive
Reka Flash
- + Multimodal
- + Fast
- - Basic coding
- - Niche provider
Verdict
Reka Flash is cheaper at $0.200/M, but GPT-4 scores higher on benchmarks (68 vs 40).
Choose Reka Flash for cost-sensitive projects, GPT-4 when performance matters most.
Compare with Other Models
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