Composer 2 vs Composer 2 Fast
| Signal | Composer 2 | Delta | Composer 2 Fast |
|---|---|---|---|
Capabilities | 50 | -- | |
Benchmarks | 66 | -- | |
Pricing | 98 | +5 | |
Context window size | 84 | -- | |
Recency | 89 | -- | |
Output Capacity | 80 | -- | |
| Overall Result | 1 wins | of 6 | 0 wins |
Score History
65.7
current score
Tied
right now
65.7
current score
Composer 2
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Composer 2 Fast
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Composer 2 saves you $350.00/month
That's $4200.00/year compared to Composer 2 Fast at your current usage level of 100K calls/month.
| Metric | Composer 2 | Composer 2 Fast | Winner |
|---|---|---|---|
| Overall Score | 66 | 66 | -- |
| Rank | #138 | #139 | Composer 2 |
| Quality Rank | #138 | #139 | Composer 2 |
| Adoption Rank | #138 | #139 | Composer 2 |
| Parameters | -- | -- | -- |
| Context Window | 200K | 200K | -- |
| Pricing | $0.50/$2.50/M | $1.50/$7.50/M | -- |
| Signal Scores | |||
| Capabilities | 50 | 50 | Composer 2 |
| Benchmarks | 66 | 66 | Composer 2 |
| Pricing | 98 | 93 | Composer 2 |
| Context window size | 84 | 84 | Composer 2 |
| Recency | 89 | 89 | Composer 2 |
| Output Capacity | 80 | 80 | Composer 2 |
Our score (0-100) is driven by benchmark performance (90%) from Arena Elo ratings, MMLU, GPQA, HumanEval, SWE-bench, and 15+ standardized evaluations. Capabilities and context window serve as tiebreakers (10%). Learn more about our methodology.
Scores 66/100 (rank #138), placing it in the top 53% of all 290 models tracked.
Scores 66/100 (rank #139), placing it in the top 52% of all 290 models tracked.
With only a 0-point gap, these models are in the same performance tier. The practical difference in output quality is minimal - your choice should depend on pricing, latency requirements, and specific feature needs.
Choose Composer 2 when you need:
- High-volume production workloads where API costs must be minimized
- Step-by-step reasoning and chain-of-thought problem solving
Choose Composer 2 Fast when you need:
- Step-by-step reasoning and chain-of-thought problem solving
Composer 2 offers 67% better value per quality point. At 1M tokens/day, you'd spend $45.00/month with Composer 2 vs $135.00/month with Composer 2 Fast - a $90.00 monthly difference.
Both models have comparable response speeds. For most applications, the latency difference is negligible.
When latency matters most: Interactive chatbots, IDE code completion, real-time translation, and user-facing applications where response time directly impacts experience. For batch processing, background summarization, or offline analysis, latency is less critical.
Code generation & review
Based on overall model capabilities and architecture for coding tasks like generating functions, debugging, and refactoring
Customer support chatbot
Suitable for user-facing chat with competitive response times. Composer 2 also offers lower per-token costs for high-volume support
Long document analysis
Larger context window (200K tokens) can process longer documents, contracts, and research papers in a single pass
Batch data extraction
Lower output pricing ($2.50/M) reduces costs when processing thousands of records daily
Creative writing & content
Higher overall composite score (66/100) correlates with better nuance, coherence, and style in long-form content
Composer 2 and Composer 2 Fast are extremely close in overall performance (only 0 points apart). Your best choice depends entirely on which specific strengths matter most for your use case.
By Use Case
Best for Quality
Composer 2
Marginally better benchmark scores; both are excellent
Best for Cost
Composer 2
67% lower pricing; better value at scale
Best for Reliability
Composer 2
Higher uptime and faster response speeds
Best for Prototyping
Composer 2
Stronger community support and better developer experience
Best for Production
Composer 2
Wider enterprise adoption and proven at scale
by Cursor
- Choose for Quality - Marginally better benchmark scores; both are excellent
- Choose for Cost - 67% lower pricing; better value at scale
- Choose for Reliability - Higher uptime and faster response speeds
- Choose for Prototyping - Stronger community support and better developer experience
- Choose for Production - Wider enterprise adoption and proven at scale
| Capability | Composer 2 | Composer 2 Fast |
|---|---|---|
| Vision (Image Input) | ||
| Function Calling | ||
| Streaming | ||
| JSON Mode | ||
| Reasoning | ||
| Web Search | ||
| Image Output |
Composer 2
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Composer 2 Fast
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Composer 2 saves you $7.80/month
That's 67% cheaper than Composer 2 Fast at 1,000 tokens/request and 100 requests/day.
Assumes 60% input / 40% output token ratio per request. Actual costs may vary based on your usage pattern.
| Parameter | Composer 2 | Composer 2 Fast |
|---|---|---|
| Context Window | 200K | 200K |
| Max Output Tokens | 65,536 | 65,536 |
| Open Source | No | No |
| Created | Dec 1, 2025 | Dec 1, 2025 |